{"id":56368,"date":"2025-02-19T16:21:12","date_gmt":"2025-02-19T10:51:12","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=56368"},"modified":"2025-02-24T11:16:13","modified_gmt":"2025-02-24T05:46:13","slug":"cat-2020-quant-slot-2-questions-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/cat-2020-quant-slot-2-questions-pdf\/","title":{"rendered":"CAT 2020 Quant Slot-2 Questions PDF"},"content":{"rendered":"<h1><span style=\"text-decoration: underline;\"><span style=\"font-family: verdana, geneva, sans-serif; font-size: 18pt;\">CAT<\/span><span style=\"font-family: verdana, geneva, sans-serif; font-size: 18pt;\"> 2020 Quant Slot-2 Questions PDF<\/span><\/span><\/h1>\n<p>Download CAT 2020 Quant Slot-2 Questions PDF asked questions in CAT exam. Practice CAT 2020 Quant Slot-2 Questions PDF for CAT exam to understand the type and level of questions asked in the exam..<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/downloads\/11893\" target=\"_blank\" class=\"btn btn-danger  download\">Download CAT 2020 Quant slot-2 questions pdf<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat-mock-test\" target=\"_blank\" class=\"btn btn-info \">CAT Mock Tests<\/a><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>Watch explanations here:<\/strong><\/span><br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/_z_CQd3JEko\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p><b>Question 1:\u00a0<\/b>The distance from B to C is thrice that from A to B. Two trains travel from A to C via B.\u00a0The speed of train 2 is double that of train 1 while traveling from A to B and their\u00a0speeds are interchanged while traveling from B to C. The ratio of the time taken by\u00a0train 1 to that taken by train 2 in travelling from A to C is<\/p>\n<p>a)\u00a05:7<\/p>\n<p>b)\u00a04:1<\/p>\n<p>c)\u00a01:4<\/p>\n<p>d)\u00a07:5<\/p>\n<p><b>Question 2:\u00a0<\/b>John takes twice as much time as Jack to finish a job. Jack and Jim together take\u00a0one-thirds of the time to finish the job than John takes working alone. Moreover, in\u00a0order to finish the job, John takes three days more than that taken by three of them\u00a0working together. In how many days will Jim finish the job working alone?<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\" target=\"_blank\" class=\"btn btn-danger \">CAT Online Coaching<\/a><\/p>\n<p><b>Question 3:\u00a0<\/b>Let $f(x)=x^{2}+ax+b$ and $g(x)=f(x+1)-f(x-1)$. If $f(x)\\geq0$ for all real x, and $g(20)=72$. then the smallest possible value of b is<\/p>\n<p>a)\u00a016<\/p>\n<p>b)\u00a04<\/p>\n<p>c)\u00a01<\/p>\n<p>d)\u00a00<\/p>\n<p><b>Question 4:\u00a0<\/b>For the same principal amount, the compound interest for two years at 5% per\u00a0annum exceeds the simple interest for three years at 3% per annum by Rs 1125.\u00a0Then the principal amount in rupees is<\/p>\n<p><b>Question 5:\u00a0<\/b>Let C be a circle of radius 5 meters having center at O. Let PQ be a chord of C that\u00a0passes through points A and B where A is located 4 meters north of O and B is located\u00a03 meters east of O. Then, the length of PQ, in meters, is nearest to<\/p>\n<p>a)\u00a08.8<\/p>\n<p>b)\u00a07.8<\/p>\n<p>c)\u00a06.6<\/p>\n<p>d)\u00a07.2<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/t.me\/CatWithCracku\" target=\"_blank\" class=\"btn btn-info \">Join 30K MBA Aspirants Telegram Group<\/a><\/p>\n<p><b>Question 6:\u00a0<\/b>In a car race, car A beats car B by 45 km. car B beats car C by 50 km. and car A beats car C by 90 km. The distance (in km) over which the race has been conducted is<\/p>\n<p>a)\u00a0475<\/p>\n<p>b)\u00a0450<\/p>\n<p>c)\u00a0500<\/p>\n<p>d)\u00a0550<\/p>\n<p><b>Question 7:\u00a0<\/b>How many 4-digit numbers, each greater than 1000 and each having all four digits\u00a0distinct, are there with 7 coming before 3?<\/p>\n<p><b>Question 8:\u00a0<\/b>The sum of the perimeters of an equilateral triangle and a rectangle is 90cm. The area, T, of the triangle and the area, R, of the rectangle, both in sq cm, satisfying the relationship $R=T^{2}$. If the sides of the rectangle are in the ratio 1:3, then the length, in cm, of the longer side of the rectangle, is<\/p>\n<p>a)\u00a027<\/p>\n<p>b)\u00a021<\/p>\n<p>c)\u00a024<\/p>\n<p>d)\u00a018<\/p>\n<p><b>Question 9:\u00a0<\/b>A sum of money is split among Amal, Sunil and Mita so that the ratio of the shares\u00a0of Amal and Sunil is 3:2, while the ratio of the shares of Sunil and Mita is 4:5. If the\u00a0difference between the largest and the smallest of these three shares is Rs.400,\u00a0then Sunil\u2019s share, in rupees, is<\/p>\n<p><a href=\"https:\/\/cracku.in\/blog\/how-to-prepare-for-reading-comprehension-for-cat\/\" target=\"_blank\" rel=\"noopener noreferrer\">How to prepare for RC<\/a><\/p>\n<p><a href=\"https:\/\/cracku.in\/blog\/para-jumbles-and-odd-one-out-for-cat\/\" target=\"_blank\" rel=\"noopener noreferrer\">How to prepare for PJ and Odd one out<\/a><\/p>\n<p><b>Question 10:\u00a0<\/b>The value of $\\log_{a}({\\frac{a}{b}})+\\log_{b}({\\frac{b}{a}})$, for $1&lt;a\\leq b$ cannot be equal to<\/p>\n<p>a)\u00a00<\/p>\n<p>b)\u00a0-1<\/p>\n<p>c)\u00a01<\/p>\n<p>d)\u00a0-0.5<\/p>\n<p><b>Question 11:\u00a0<\/b>Students in a college have to choose at least two subjects from chemistry,\u00a0mathematics and physics. The number of students choosing all three subjects is 18,\u00a0choosing mathematics as one of their subjects is 23 and choosing physics as one of\u00a0their subjects is 25. The smallest possible number of students who could choose\u00a0chemistry as one of their subjects is<\/p>\n<p>a)\u00a022<\/p>\n<p>b)\u00a021<\/p>\n<p>c)\u00a020<\/p>\n<p>d)\u00a019<\/p>\n<p><b>Question 12:\u00a0<\/b>In a group of 10 students, the mean of the lowest 9 scores is 42 while the mean of the\u00a0highest 9 scores is 47. For the entire group of 10 students, the maximum possible\u00a0mean exceeds the minimum possible mean by<\/p>\n<p>a)\u00a05<\/p>\n<p>b)\u00a04<\/p>\n<p>c)\u00a03<\/p>\n<p>d)\u00a06<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat-previous-papers\" target=\"_blank\" class=\"btn btn-danger \">Download CAT Previous Papers PDF<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/free-cat-video-lectures\" target=\"_blank\" class=\"btn btn-primary \">Take Free CAT Video Lectures<\/a><\/p>\n<p><b>Question 13:\u00a0<\/b>A and B are two points on a straight line. Ram runs from A to B while Rahim runs from B to A. After crossing each other. Ram and Rahim reach their destination in one minute and four minutes, respectively. if they start at the same time, then the ratio of Ram&#8217;s speed to Rahim&#8217;s speed is<\/p>\n<p>a)\u00a0$\\frac{1}{2}$<\/p>\n<p>b)\u00a0$\\sqrt{2}$<\/p>\n<p>c)\u00a0$2$<\/p>\n<p>d)\u00a0$2\\sqrt{2}$<\/p>\n<p><b>Question 14:\u00a0<\/b>Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A.\u00a0Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2\u00a0at speeds 15 km\/hr and 5 km\/hr respectively. The number of full rounds that Ram will\u00a0make before he meets Rahim again for the first time is<\/p>\n<p>a)\u00a05<\/p>\n<p>b)\u00a03<\/p>\n<p>c)\u00a02<\/p>\n<p>d)\u00a04<\/p>\n<p><b>Question 15:\u00a0<\/b>Let C1 and C2 be concentric circles such that the diameter of C1 is 2cm longer than that of C2. If a chord of C1 has length 6cm and is a tangent to C2, then the diameter, in cm, of C1 is<\/p>\n<p><b>Question 16:\u00a0<\/b>Anil buys 12 toys and labels each with the same selling price. He sells 8 toys initially\u00a0at 20% discount on the labeled price. Then he sells the remaining 4 toys at an\u00a0additional 25% discount on the discounted price. Thus, he gets a total of Rs 2112, and\u00a0makes a 10% profit. With no discounts, his percentage of profit would have been<\/p>\n<p>a)\u00a050<\/p>\n<p>b)\u00a060<\/p>\n<p>c)\u00a054<\/p>\n<p>d)\u00a055<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/blog\/cat-formulas-pdf\/\" target=\"_blank\" class=\"btn btn-danger \">Download CAT Maths formulas PDF<\/a><\/p>\n<p><b>Question 17:\u00a0<\/b>The number of integers that satisfy the equality $(x^{2}-5x+7)^{x+1}=1$ is<\/p>\n<p>a)\u00a03<\/p>\n<p>b)\u00a02<\/p>\n<p>c)\u00a04<\/p>\n<p>d)\u00a05<\/p>\n<p><b>Question 18:\u00a0<\/b>The number of pairs of integers $(x,y)$ satisfying $x\\geq y\\geq-20$ and $2x+5y=99$<\/p>\n<p><b>Question 19:\u00a0<\/b>From an interior point of an equilateral triangle, perpendiculars are drawn on all three sides. The sum of the lengths of the three perpendiculars is s. Then the area of the triangle is<\/p>\n<p>a)\u00a0$\\frac{\\sqrt{3}s^{2}}{2}$<\/p>\n<p>b)\u00a0$\\frac{2s^{2}}{\\sqrt{3}}$<\/p>\n<p>c)\u00a0$\\frac{s^{2}}{2\\sqrt{3}}$<\/p>\n<p>d)\u00a0$\\frac{s^{2}}{\\sqrt{3}}$<\/p>\n<p><b>Question 20:\u00a0<\/b>Let the m-th and n-th terms of a geometric progression be $\\frac{3}{4}$ and 12. respectively, where $m &lt; n$. If the common ratio of the progression is an integer r, then the smallest possible value of $r + n &#8211; m$ is<\/p>\n<p>a)\u00a06<\/p>\n<p>b)\u00a02<\/p>\n<p>c)\u00a0-4<\/p>\n<p>d)\u00a0-2<\/p>\n<p><b>Question 21:\u00a0<\/b>In May, John bought the same amount of rice and the same amount of wheat as he had\u00a0bought in April, but spent \u20b9 150 more due to price increase of rice and wheat by 20%\u00a0and 12%, respectively. If John had spent \u20b9 450 on rice in April, then how much did he\u00a0spend on wheat in May?<\/p>\n<p>a)\u00a0Rs.560<\/p>\n<p>b)\u00a0Rs.570<\/p>\n<p>c)\u00a0Rs.590<\/p>\n<p>d)\u00a0Rs.580<\/p>\n<p><b>Question 22:\u00a0<\/b>If x and y are non-negative integers such that $x + 9 = z$, $y + 1 = z$ and $x + y &lt; z + 5$, then the maximum possible value of $2x + y$ equals<\/p>\n<p><b>Question 23:\u00a0<\/b>Aron bought some pencils and sharpeners. Spending the same amount of money as\u00a0Aron, Aditya bought twice as many pencils and 10 less sharpeners. If the cost of one\u00a0sharpener is \u20b9 2 more than the cost of a pencil, then the minimum possible number of\u00a0pencils bought by Aron and Aditya together is<\/p>\n<p>a)\u00a033<\/p>\n<p>b)\u00a027<\/p>\n<p>c)\u00a030<\/p>\n<p>d)\u00a036<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat-daily-target\/\" target=\"_blank\" class=\"btn btn-info \">Take Free CAT Daily Tests (With Video Solutions)<\/a><\/p>\n<p>&nbsp;<\/p>\n<p><b>Question 24:\u00a0<\/b>For real x, the maximum possible value of $\\frac{x}{\\sqrt{1+x^{4}}}$ is<\/p>\n<p>a)\u00a0$\\frac{1}{2}$<\/p>\n<p>b)\u00a0$1$<\/p>\n<p>c)\u00a0$\\frac{1}{\\sqrt{3}}$<\/p>\n<p>d)\u00a0$\\frac{1}{\\sqrt{2}}$<\/p>\n<p><b>Question 25:\u00a0<\/b>In how many ways can a pair of integers (x , a) be chosen such that $x^{2}-2\\mid x\\mid+\\mid a-2\\mid=0$ ?<\/p>\n<p>a)\u00a06<\/p>\n<p>b)\u00a05<\/p>\n<p>c)\u00a04<\/p>\n<p>d)\u00a07<\/p>\n<p><b>Question 26:\u00a0<\/b>if x and y are positive real numbers satisfying $x+y=102$, then the minimum possible valus of $2601(1+\\frac{1}{x})(1+\\frac{1}{y})$ is<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>Answers &amp; Solutions:<\/strong><\/span><\/p>\n<p><strong>1)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>Let the distance from A to B be &#8220;x&#8221;, then the distance from B to C will be 3x. Now the speed of Train 2 is double of Train 1. Let the speed of Train 1 be &#8220;v&#8221;, then the speed of Train 2 will be &#8220;2v&#8221; while travelling from A\u00a0to B.<\/p>\n<p>Time taken by Train 1 = (x\/v)<\/p>\n<p>Time taken by Train 2 = (x\/2v)<\/p>\n<p>Now from B to C distance is &#8220;3x&#8221; and the speed of Train 2 is (v) and the speed of Train 1 is (2v).<\/p>\n<p>Time taken by Train 1 = 3x\/2v<\/p>\n<p>Time taken by Train 2 = 3x\/v<\/p>\n<p>Total time taken by Train 1 = x\/v(1+(3\/2)) = (5\/2)(x\/v)<\/p>\n<p>Total time taken by Train 2 = x\/v(3+(1\/2))= (7\/2)(x\/v)<\/p>\n<p>Ratio of time taken =\u00a0$\\frac{5}{\\frac{2}{\\frac{7}{2}}}=\\frac{5}{7}$<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat\/previous-papers\" target=\"_blank\" class=\"btn btn-primary \">Download CAT Previous Solved Papers<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/www.youtube.com\/channel\/UCjrG4n3cS6y45BfCJjp3boQ\" target=\"_blank\" class=\"btn btn-alone \">Free Live Classes &#8211; Cracku Youtube<\/a><\/p>\n<p><b>2)\u00a0Answer:\u00a04<\/b><\/p>\n<p>Let Jack take &#8220;t&#8221; days to complete the work, then John will take &#8220;2t&#8221; days to complete the work. So work done by Jack in one day is (1\/t) and John is (1\/2t) .<\/p>\n<p>Now let Jim take &#8220;m&#8221; days to complete the work. According to question,\u00a0$\\frac{1}{t}+\\frac{1}{m}=\\frac{3}{2t}\\ or\\ \\frac{1}{m}=\\frac{1}{2t\\ }or\\ m=2t$ Hence Jim takes &#8220;2t&#8221; time to complete the work.<\/p>\n<p>Now let the three of them complete the work in &#8220;p&#8221; days. Hence John takes &#8220;p+3&#8221; days to complete the work.<\/p>\n<p>$\\frac{1}{2t}\\left(m+3\\right)=\\left(\\frac{4}{2t}\\right)m$<\/p>\n<p>$\\frac{1}{2t}\\left(m+3\\right)=\\left(\\frac{4}{2t}\\right)m$<\/p>\n<p>or m=1. Hence JIm will take (1+3)=4 days to complete the work. Similarly John will also take 4 days to complete the work<\/p>\n<p><strong>3)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p>$f\\left(x\\right)=\\ x^2+ax+b$<\/p>\n<p>$f\\left(x+1\\right)=x^2+2x+1+ax+a+b$<\/p>\n<p>$f\\left(x-1\\right)=x^2-2x+1+ax-a+b$<\/p>\n<p>$ g(x)=f(x+1)-f(x-1)= 4x+2a$<\/p>\n<p>Now $g(20) = 72$ from this we get $a = -4$\u00a0;\u00a0$f\\left(x\\right)=x^2-4x\\ +b$<\/p>\n<p>For this expression to be greater than zero it has to be a perfect square\u00a0which is possible for $b\\ge\\ 4$<\/p>\n<p>Hence the smallest value of &#8216;<strong>b&#8217;<\/strong> is 4.<\/p>\n<p><b>4)\u00a0Answer:\u00a090000<\/b><\/p>\n<p>For two years the compound interest is\u00a0$\\frac{PR(1)}{100}+\\frac{PR(1)}{100}\\left(1+\\frac{PR(1)}{100}\\right)$<\/p>\n<p>For three years the simple interest is\u00a0$\\frac{9PR}{100}$<\/p>\n<p>Now R(1)= 5% and R=3%<\/p>\n<p>Hence\u00a0$\\frac{5P}{100}+\\frac{5P}{100}\\left(1.05\\right)-\\frac{9P}{100}=1125$<\/p>\n<p>$\\frac{-4P}{100}+\\frac{5.25P}{100}=1125$<\/p>\n<p>$\\frac{1.25P}{100}=1125$<\/p>\n<p>Solving we get P= 90000<\/p>\n<p><strong>5)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>We can form the following figure based on the given information:<\/p>\n<figure><img decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/cracku.in\/media\/uploads\/image_vOZ14ax.png\" data-image=\"image.png\" \/><\/figure>\n<p>Since OA = 4 m and OB=3 m; AB = 5 m. OR bisects the chord into PC and QC.<\/p>\n<p>Since AB = 5 m, we have $a+b = 5\u00a0 \u00a0 \u00a0\u00a0&#8230;(i)$\u00a0 Also,\u00a0$4^2\\ -k^2=a^2&#8230;\\left(ii\\right)$ and\u00a0$3^2\\ -k^2=b^2&#8230;\\left(iii\\right)$<\/p>\n<p>Subtracting (iii) from (ii), we get:\u00a0$a^2\\ -b^2=7&#8230;\\left(iv\\right)$<\/p>\n<p>Substituting (i) in\u00a0(iv), we get $a &#8211; b = 1.4\u00a0 \u00a0 \u00a0\u00a0&#8230;(v)$;\u00a0$\\left[\\left(a+b\\right)\\left(a\\ -b\\right)=7;\\ \\therefore\\ \\left(a-b\\right)=\\frac{7}{5}\\right]$<\/p>\n<p>Solving (i) and (v), we obtain the value of $a=3.2$ and $b=1.8$<\/p>\n<p>Hence,\u00a0$k^2\\ =\\ 5.76$<\/p>\n<p>Moving on to the larger triangle\u00a0$\\triangle\\ POC$, we have\u00a0$5^2-k^2=\\left(x+a\\right)^2$;<\/p>\n<p>Substituting the previous values, we get:\u00a0$(25-5.76)=\\left(x+3.2\\right)^2$<\/p>\n<p>$\\sqrt{19.24}=\\left(x+3.2\\right)$\u00a0or $x = 1.19 m$<\/p>\n<p>Similarly, solving for y using\u00a0$\\triangle\\ QOC$, we get $y=2.59 m$<\/p>\n<p>Therefore, $PQ = 5+2.59+1.19 = 8.78\u00a0\\approx\\ 8.8 m$<\/p>\n<p>Hence, Option A is the correct answer.<\/p>\n<p><strong>6)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p>Now car A beats car B by 45km. Let the speed of car A be v(a) and speed of car B be v(b).<\/p>\n<p>$\\frac{v\\left(a\\right)}{v\\left(b\\right)}=\\frac{m}{m-45}$ &#8230;..(1)where &#8216;&#8221;m&#8221; is the entire distance of the race track.<\/p>\n<p>Moreover\u00a0$\\frac{v\\left(b\\right)}{v\\left(c\\right)}=\\frac{m}{m-50}$&#8230;&#8230;.(2)<\/p>\n<p>and finally\u00a0$\\frac{v\\left(a\\right)}{v\\left(c\\right)}=\\frac{m}{m-90}$&#8230;&#8230;(3)<\/p>\n<p>Multiplying (1) and (2) we get (3).\u00a0$\\frac{m}{m-90}=\\frac{m}{m-45}\\left(\\frac{m}{m-50}\\right)$<\/p>\n<p>Solving we get m=450 which is the length of the entire race track<\/p>\n<p><b>7)\u00a0Answer:\u00a0315<\/b><\/p>\n<p>Here there are two cases possible<\/p>\n<p>Case 1: When 7 is at the left extreme<\/p>\n<p>In that case 3 can occupy any of the three remaining places and the remaining two places can be taken by (0,1,2,4,5,6,8,9)<\/p>\n<p>So total ways 3(8)(7)= 168<\/p>\n<p>Case 2: When 7 is not at the extremes<\/p>\n<p>Here there are 3 cases possible. And the remaining two places can be filled in 7(7) ways.(Remember 0 can&#8217;t come on the extreme left)<\/p>\n<p>Hence in total 3(7)(7)=147 ways<\/p>\n<p>Total ways 168+147=315 ways<\/p>\n<p><strong>8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>Let the sides of the rectangle\u00a0be &#8220;a&#8221; and &#8220;3a&#8221; m. Hence the perimeter of the rectangle is 8a.<\/p>\n<p>Let the side of the equilateral triangle be &#8220;m&#8221; cm. Hence the perimeter of the equilateral triangle is &#8220;3m&#8221; cm. Now we know that 8a+3m=90&#8230;&#8230;(1)<\/p>\n<p>Moreover area of the equilateral triangle is\u00a0$\\frac{\\sqrt{\\ 3}}{4}m^2$ and area of the rectangle is\u00a0$3a^2$<\/p>\n<p>According to the relation given\u00a0$\\left(\\frac{\\sqrt{\\ 3}}{4}m^2\\right)^{^2}=\\ 3a^2$<\/p>\n<p>$\\frac{3}{16}m^4=\\ 3a^2\\ or\\ a^2=\\frac{m^4}{16}$<\/p>\n<p>$a=\\frac{m^2}{4}$<\/p>\n<p>Substituting this in (1) we get\u00a0$2m^2+3m-90\\ =0$ solving this we get m=6 (ignoring the negative value since side can&#8217;t be negative)<\/p>\n<p>Hence a=9 and the longer side of the rectangle will be 3a=27cm<\/p>\n<p><b>9)\u00a0Answer:\u00a0800<\/b><\/p>\n<p>Let the amount of money with Amal and Sunil be 6x and 4x. Now the amount of money with Mita be 5x. Difference between the largest and smallest amount is \u20b9400 i.e. 6x-4x=400 or 2x=400 or x=200 . Amount of money with Sunil is 200(4)=\u20b9800<\/p>\n<p><strong>10)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p>On expanding the expression we get\u00a0$1-\\log_ab+1-\\log_ba$<\/p>\n<p>$or\\ 2-\\left(\\log_ab+\\frac{1}{\\log_ba}\\right)$<\/p>\n<p>Now applying the property of AM&gt;=GM, we get that\u00a0\u00a0$\\frac{\\left(\\log_ab+\\frac{1}{\\log_ba}\\right)}{2}\\ge1\\ or\\ \\left(\\log_ab+\\frac{1}{\\log_ba}\\right)\\ge2$ Hence from here we can conclude that the expression will always be equal to 0 or less than 0. Hence any positive value is not possible. So 1 is not possible.<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat\/previous-papers\" target=\"_blank\" class=\"btn btn-primary \">Download CAT Previous Solved Papers<\/a><\/p>\n<p><strong>11)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p>Now 23 students choose maths as one of their subject.<\/p>\n<p>This means (MPC)+ (MC) + (PC)=23 where MPC denotes students who choose all the three subjects maths, physics and chemistry and so on.<\/p>\n<p>So MC + PM =5 Similarly we have PC+ MP =7<\/p>\n<p>We have to find the smallest number of students choosing chemistry<\/p>\n<p>For that\u00a0in the first equation let PM=5 and MC=0. In the second equation this PC=2<\/p>\n<p>Hence minimum number of students choosing chemistry will be (18+2)=20 Since 18 students chose all the three subjects.<\/p>\n<p><strong>12)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p>Let x(1) be the least number and x(10) be the largest number. Now from the condition given in the question , we can say that<\/p>\n<p>x(2)+x(3)+x(4)+&#8230;&#8230;..x(10)= 47*9=423&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.(1)<\/p>\n<p>Similarly x(1)+x(2)+x(3)+x(4)&#8230;&#8230;&#8230;&#8230;&#8230;.+x(9)= 42*9=378&#8230;&#8230;&#8230;&#8230;&#8230;(2)<\/p>\n<p>Subtracting both the equations we get x(10)-x(1)=45<\/p>\n<p>Now, the sum of the 10 observations from equation (1) is 423+x(1)<\/p>\n<p>Now the minimum value of x(10) will be 47 and the minimum value of x(1) will be 2 . Hence minimum average 425\/10=42.5<\/p>\n<p>Maximum value of x(1) is 42. Hence maximum average will be 465\/10=46.5<\/p>\n<p>Hence difference in average will be 46.5-42.5=4 which is the correct answer<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/www.youtube.com\/channel\/UCjrG4n3cS6y45BfCJjp3boQ\" target=\"_blank\" class=\"btn btn-alone \">Free Live Classes &#8211; Cracku Youtube<\/a><\/p>\n<p><strong>13)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p>Let the speed of Ram be v(r) and the speed of Rahim be v(h) respectively. Let them meet after time &#8220;t&#8221; from the beginning.<\/p>\n<p>Hence Ram will cover v(r)(t) during that time and Rahim will cover v(h)t respectively.<\/p>\n<p>Now after meeting Ram reaches his destination in 1 min i.e. Ram covered v(h)t in 1 minute or v(r)(1)= v(h)(t)<\/p>\n<p>Similarly Rahim reaches his destination in 4 min i.e. Rahim covered v(r)t in 4 minutes or v(h)(4)= v(r)(t)<\/p>\n<p>Dividing both the equations we get\u00a0$\\frac{v\\left(r\\right)}{4v\\left(h\\right)}=\\frac{v\\left(h\\right)}{v\\left(r\\right)}\\ or\\ \\frac{v\\left(r\\right)}{v\\left(h\\right)}=2$ Hence the ratio is 2.<\/p>\n<p><strong>14)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<figure><img decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/cracku.in\/media\/uploads\/image_lmGqNsE.png\" data-image=\"image.png\" \/><\/figure>\n<p>To complete one round Ram takes 100m\/15kmph and Rahim takes 20m\/5kmph<\/p>\n<p>They meet for the first time after L.C.M of (100m\/15kmph , 20m\/5kmph) = 100m\/5kmph=20m\/kmph.<\/p>\n<p>Distance traveled by Ram =20m\/kmph * 15kmph =300m.<\/p>\n<p>So, he must have ran 300\/100=3 rounds.<\/p>\n<p><strong>Note:<\/strong><\/p>\n<p>CAT gave both 2 and 3 as correct answers because of the word &#8216;<strong>before<\/strong>&#8216;.<\/p>\n<p><b>15)\u00a0Answer:\u00a010<\/b><\/p>\n<p>Now we know that the perpendicular from the centre to a chord bisects the chord.\u00a0Hence at the point of intersection of tangent, the chord will be divided into two parts of 3 cm each. As you can clearly see in the diagram, a right angled triangle is formed there.<\/p>\n<p>Hence\u00a0 \u00a0$\\left(r+1\\right)^2=r^2+9$ or\u00a0$r^{2\\ }+1+2r\\ =\\ r^2+9\\ or\\ 2r=8\\ or\\ r=4cm$<\/p>\n<p>Hence the radius of the larger circle is 5cm and diameter is 10cm.<\/p>\n<figure><img decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/cracku.in\/media\/uploads\/paint_CBuPEfp.png\" data-image=\"paint.png\" \/><\/figure>\n<p><strong>16)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>Let the CP of the each toy be &#8220;x&#8221;. CP of 12 toys will be &#8220;12x&#8221;. Now the shopkeeper made a 10% profit on CP. This means that<\/p>\n<p>12x(1.1)= 2112 or x=160 . Hence the CP of each toy is \u20b9160.<\/p>\n<p>Now let the SP of each toy be &#8220;m&#8221;. Now he sold 8 toys at 20% discount. This means that 8m(0.8) or 6.4m<\/p>\n<p>He sold 4 toys at an additional 25% discount. 4m(0.8)(0.75)=2.4m\u00a0 Now 6.4m+2.4m=8.8m=2112 or m=240<\/p>\n<p>Hence CP= 160 and SP=240. Hence profit percentage is 50%.<\/p>\n<p><strong>17)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>$\\left(x^2-5x+7\\right)^{x+1}=1$<\/p>\n<p>There can be a solution when\u00a0$\\left(x^2-5x+7\\right)=1$ or $x^2-5x\\ +6=0$<\/p>\n<p>or x=3 and x=2<\/p>\n<p>There can also be a solution when x+1 = 0 or x=-1<\/p>\n<p>Hence three possible solutions exist.<\/p>\n<p><b>18)\u00a0Answer:\u00a017<\/b><\/p>\n<p>We have 2x + 5y = 99 or\u00a0$x=\\frac{\\left(99-5y\\right)}{2}$<\/p>\n<p>Now $x\\ge\\ y\\ \\ge\\ -20$ ;\u00a0So\u00a0$\\frac{\\left(99-5y\\right)}{2}\\ge\\ y\\ ;\\ 99\\ge7y\\ or\\ y\\le\\ \\approx\\ 14$<\/p>\n<p>So $-20\\le y\\le14$. Now for this range of &#8220;y&#8221;, we have to find all the integral values of &#8220;x&#8221;. As the coefficient of &#8220;x&#8221; is 2,<\/p>\n<p>then (99 &#8211;\u00a05y) must be even, which will happen when &#8220;y&#8221; is odd. However, there are only 17 odd values of &#8220;y&#8221; be -20 and 14.<\/p>\n<p>Hence the number of possible values is 17.<\/p>\n<p><strong>19)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<figure><img decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/cracku.in\/media\/uploads\/Screenshot_TPSJW1B.png\" data-image=\"Screenshot.png\" \/><\/figure>\n<p>Based on the question:\u00a0AD, CE and BF are the three altitudes of the triangle. It has been stated that {GD+GE+GF = s}<\/p>\n<p>Now since the triangle is equilateral, let the length of each side be &#8220;a&#8221;. So area of triangle will be<\/p>\n<p>$\\frac{1}{2}\\times\\ GD\\times\\ a+\\ \\frac{1}{2}\\times\\ GE\\times\\ a\\ +\\frac{1}{2}\\times\\ GF\\times\\ a=\\frac{\\sqrt{\\ 3}}{4}a^2$<\/p>\n<p>Now\u00a0$GD+GE+GF=\\frac{\\sqrt{\\ 3}a}{2}$ or\u00a0$s=\\frac{\\sqrt{\\ 3}a}{2}\\ or\\ a=\\frac{2s}{\\sqrt{\\ 3}}$<\/p>\n<p>Given the area of the equilateral\u00a0triangle =\u00a0$\\ \\frac{\\sqrt{3}}{4}a^2\\ $ ; substituting the value of &#8216;a&#8217; from above, we get the area {in terms &#8216;s&#8217;}=\u00a0$\\frac{s^2}{\\sqrt{3}}$<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/cat-daily-target\/\" target=\"_blank\" class=\"btn btn-info \">Take Free CAT Daily Tests (With Video Solutions)<\/a><\/p>\n<p><strong>20)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p>Let the first term of the GP be &#8220;a&#8221; . Now from the question we can show that<\/p>\n<p>$ar^{m-1}=\\frac{3}{4}$\u00a0 \u00a0\u00a0$ar^{n-1}=12$<\/p>\n<p>Dividing both the equations we get\u00a0$r^{m-1-n+1}=\\frac{1}{16}\\ or\\ r^{m-n}=16^{-1\\ }or\\ r^{n-m}=16$<\/p>\n<p>So for the minimum possible value we take Now give minimum possible value to &#8220;r&#8221; i.e -4 and n-m=2<\/p>\n<p>Hence minimum possible value of r+n-m=-4+2=-2<\/p>\n<p><strong>21)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>Let John buy &#8220;m&#8221; kg of rice and &#8220;p&#8221; kg of wheat.<\/p>\n<p>Now let the price of rice be &#8220;r&#8221; in April. Price in May will be &#8220;1.2(r)&#8221;<\/p>\n<p>Now let the price of wheat be &#8220;w&#8221; in April . Price in April will be &#8220;1.12(w)&#8221;.<\/p>\n<p>Now he spent \u20b9150 more in May , so 0.2(rm)+0.12(wp)=150<\/p>\n<p>Its also given that he had spent \u20b9450 on rice in April. So (rm)=450<\/p>\n<p>So 0.2(rm)= (0.2)(450)=90 Substituting we get (wp)=60\/0.12 or (wp)=500<\/p>\n<p>Amount spent on wheat in May will be 1.12(500)=\u20b9560<\/p>\n<p><b>22)\u00a0Answer:\u00a023<\/b><\/p>\n<p>We can write x=z-9 and y=z-1 Now we have x+y&lt; z+5<\/p>\n<p>Substituting we get z-9+z-1&lt;z+5 or z&lt;15<\/p>\n<p>Hence the maximum possible value of z is 14<\/p>\n<p>Maximum value of &#8220;x&#8221; is 5 and maximum value of &#8220;y&#8221; is 13<\/p>\n<p>Now 2x+y = 10+13=23<\/p>\n<p><strong>23)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p>Let the number of pencils bought by Aron\u00a0be &#8220;p&#8221; and the cost of each pencil be &#8220;a&#8221;.<\/p>\n<p>Let the number of sharpeners bought Aron be &#8220;s&#8221; and the cost of each sharpener be &#8220;b&#8221;.<\/p>\n<p>Now amount spent by Aron will be (pa)+(sb)<\/p>\n<p>Aditya bought (2p) pencils and (s-10) sharpeners. Amount spent will be (2pa)+(s-10)b<\/p>\n<p>Amount spent in both the cases is same<\/p>\n<p>pa + sb = 2pa + (s-10)b or pa=10b<\/p>\n<p>Now its given in the question that cost of sharpener is 2 more than pencil i.e. b=a+2<\/p>\n<p>pa= 10a+20 or a=20\/(p-10)<\/p>\n<p>Now the number of pencils has to be minimum, for that we have to find smallest &#8220;p&#8221; such that both &#8220;p&#8221; and &#8220;a&#8221; are integers. The smallest such value is p=11 . Total number of pencils bought will be p+2p=11+22=33<\/p>\n<p><strong>24)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p>Now\u00a0$\\frac{x}{\\sqrt{\\ 1+x^4}}=\\ \\frac{\\ 1}{\\sqrt{\\ \\ \\frac{\\ 1+x^4}{x^2}}}=\\frac{1}{\\sqrt{\\ \\frac{1}{x^2}+x^2}}$<\/p>\n<p>Applying A.M&gt;= G.M.<\/p>\n<p>$\\frac{\\left(\\frac{1}{x^2}+x^2\\right)}{2}\\ge\\ 1\\ or\\ \\ \\frac{1}{x^2}+x^2\\ge\\ 2$ Substituting we get the maximum possible value of the equation as\u00a0$\\frac{1}{\\sqrt{\\ 2}}$<\/p>\n<p><strong>25)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p>$x^{2}-2\\mid x\\mid+\\mid a-2\\mid=0$<\/p>\n<p>where x&gt;= 0 and x&gt;=2<\/p>\n<p>$x^2-2x+a-2\\ =0$ Using quadratic equation we have $x=\\ 1+\\sqrt{\\ 3-a}\\ and\\ x=1-\\sqrt{\\ 3-a}$ Only two integer values are possible<\/p>\n<p>a=2 and a=3. So corresponding &#8220;x&#8221; values are x=1 and a=3, x=2 and a=2, x=0 and a=2<\/p>\n<p>where x&gt;=0 and x&lt;2<\/p>\n<p>Applying the above process we get x=1 and a=1<\/p>\n<p>where x&lt;0 and x&gt;=2 we get a=3 and x=-1 , a=2 and x=-2<\/p>\n<p>where x&lt;0 and x&lt;2 we get a=1 and x=-1<\/p>\n<p>Hence there are total 7 values possible<\/p>\n<p><b>26)\u00a0Answer:\u00a02704<\/b><\/p>\n<p>Now we have\u00a0$2601\\left(1+\\frac{1}{x}\\right)\\left(1+\\frac{1}{y}\\right)=2601\\left(\\frac{xy+y+x+1}{xy}\\right)$<\/p>\n<p>Now we know that x+y=102. Substituting it in the above equation<\/p>\n<p>$2601\\left(\\frac{xy+y+x+1}{xy}\\right)=2601\\left(\\frac{103}{xy}+1\\right)$<\/p>\n<p>Maximum value of xy\u00a0 can be found out by AM&gt;= GM relationship<\/p>\n<p>$\\ \\frac{\\ x+y}{2}\\ge\\ \\sqrt{xy}\\ or\\ \\ \\sqrt{\\ xy}\\le\\ 51\\ or\\ xy\\le\\ 2601$<\/p>\n<p>Hence the maximum value of &#8220;xy&#8221; is 2601. Substituting in the above equation we get<\/p>\n<p>$2601\\left(\\ \\frac{\\ 103+2601}{2601}\\right)=2704$<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.cracku.app&amp;hl=en_IN&amp;gl=US\" target=\"_blank\" class=\"btn btn-danger \">Free CAT preparation App<\/a><\/p>\n<p>We hope this\u00a0 for CAT 2020 Quant slot-2 questions pdf With Answers PDF with Solutions will be helpful to you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CAT 2020 Quant Slot-2 Questions PDF Download CAT 2020 Quant Slot-2 Questions PDF asked questions in CAT exam. Practice CAT 2020 Quant Slot-2 Questions PDF for CAT exam to understand the type and level of questions asked in the exam.. Watch explanations here: Question 1:\u00a0The distance from B to C is thrice that from A [&hellip;]<\/p>\n","protected":false},"author":58,"featured_media":56396,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[3],"tags":[6,214],"class_list":{"0":"post-56368","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-cat","8":"tag-cat","9":"tag-quant"},"better_featured_image":{"id":56396,"alt_text":"","caption":"","description":"","media_type":"image","media_details":{"width":1200,"height":630,"file":"2021\/02\/fig-24-02-2021_09-38-18.jpg","sizes":{"medium":{"file":"fig-24-02-2021_09-38-18-300x158.jpg","width":300,"height":158,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-300x158.jpg"},"large":{"file":"fig-24-02-2021_09-38-18-1024x538.jpg","width":1024,"height":538,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-1024x538.jpg"},"thumbnail":{"file":"fig-24-02-2021_09-38-18-150x150.jpg","width":150,"height":150,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-150x150.jpg"},"medium_large":{"file":"fig-24-02-2021_09-38-18-768x403.jpg","width":768,"height":403,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-768x403.jpg"},"tiny-lazy":{"file":"fig-24-02-2021_09-38-18-30x16.jpg","width":30,"height":16,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-30x16.jpg"},"td_218x150":{"file":"fig-24-02-2021_09-38-18-218x150.jpg","width":218,"height":150,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-218x150.jpg"},"td_324x400":{"file":"fig-24-02-2021_09-38-18-324x400.jpg","width":324,"height":400,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-324x400.jpg"},"td_696x0":{"file":"fig-24-02-2021_09-38-18-696x365.jpg","width":696,"height":365,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-696x365.jpg"},"td_1068x0":{"file":"fig-24-02-2021_09-38-18-1068x561.jpg","width":1068,"height":561,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-1068x561.jpg"},"td_0x420":{"file":"fig-24-02-2021_09-38-18-800x420.jpg","width":800,"height":420,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-800x420.jpg"},"td_80x60":{"file":"fig-24-02-2021_09-38-18-80x60.jpg","width":80,"height":60,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-80x60.jpg"},"td_100x70":{"file":"fig-24-02-2021_09-38-18-100x70.jpg","width":100,"height":70,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-100x70.jpg"},"td_265x198":{"file":"fig-24-02-2021_09-38-18-265x198.jpg","width":265,"height":198,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-265x198.jpg"},"td_324x160":{"file":"fig-24-02-2021_09-38-18-324x160.jpg","width":324,"height":160,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-324x160.jpg"},"td_324x235":{"file":"fig-24-02-2021_09-38-18-324x235.jpg","width":324,"height":235,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-324x235.jpg"},"td_356x220":{"file":"fig-24-02-2021_09-38-18-356x220.jpg","width":356,"height":220,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-356x220.jpg"},"td_356x364":{"file":"fig-24-02-2021_09-38-18-356x364.jpg","width":356,"height":364,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-356x364.jpg"},"td_533x261":{"file":"fig-24-02-2021_09-38-18-533x261.jpg","width":533,"height":261,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-533x261.jpg"},"td_534x462":{"file":"fig-24-02-2021_09-38-18-534x462.jpg","width":534,"height":462,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24-02-2021_09-38-18-534x462.jpg"},"td_696x385":{"file":"fig-24-02-2021_09-38-18-696x385.jpg","width":696,"height":385,"mime-type":"image\/jpeg","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2021\/02\/fig-24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