{"id":29861,"date":"2019-06-04T17:56:02","date_gmt":"2019-06-04T12:26:02","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=29861"},"modified":"2019-06-04T17:56:02","modified_gmt":"2019-06-04T12:26:02","slug":"rrb-ntpc-expected-maths-questions-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/rrb-ntpc-expected-maths-questions-pdf\/","title":{"rendered":"RRB NTPC Expected Maths Questions PDF"},"content":{"rendered":"

RRB NTPC Expected Maths Questions PDF<\/strong><\/span><\/h1>\n

Download RRB NTPC Expected Maths Questions and Answers PDF. Top 15 RRB NTPC Maths questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n

Download RRB NTPC Expected Maths Questions PDF<\/a><\/p>\n\n

Take a free mock test for RRB NTPC<\/a><\/p>\n

Download RRB NTPC Previous Papers PDF<\/a><\/p>\n

Question 1:\u00a0<\/b>A train travels at a speed of 150 kmph without stoppages and at 100 kmph with stoppages. How many minutes per hour does the train stop?<\/p>\n

a)\u00a020 minutes<\/p>\n

b)\u00a015 minutes<\/p>\n

c)\u00a025 minutes<\/p>\n

d)\u00a010 minutes<\/p>\n

Question 2:\u00a0<\/b>A, B and C are employed to do a piece of work for Rs.1400. A and B are supposed to finish $\\dfrac{11}{14}th$ of the given work. The amount paid to C is?<\/p>\n

a)\u00a0Rs.600<\/p>\n

b)\u00a0Rs.300<\/p>\n

c)\u00a0Rs.250<\/p>\n

d)\u00a0Rs.700<\/p>\n

Question 3:\u00a0<\/b>A car travels x km at 60 kmph and then 2x km at 40 kmph. Find its average speed for entire distance ?<\/p>\n

a)\u00a045 kmph<\/p>\n

b)\u00a048 kmph<\/p>\n

c)\u00a056 kmph<\/p>\n

d)\u00a060 kmph<\/p>\n

RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n

FREE RRB NTPC YOUTUBE VIDEOS<\/a><\/p>\n

Question 4:\u00a0<\/b>How many distinct roots does $x^2 – 26x + 169=0$ have?<\/p>\n

a)\u00a00<\/p>\n

b)\u00a01<\/p>\n

c)\u00a02<\/p>\n

d)\u00a0Can\u2019t say<\/p>\n

Instructions<\/b><\/p>\n

Question 5:\u00a0<\/b>if $\\csc\\theta-\\cot\\theta$=3 then what is the value of $\\csc\\theta+\\cot\\theta$ ?<\/p>\n

a)\u00a03<\/p>\n

b)\u00a01\/3<\/p>\n

c)\u00a02<\/p>\n

d)\u00a01\/2<\/p>\n

Question 6:\u00a0<\/b>If cosec \u03b8 – cot \u03b8 = 3, then find cosec \u03b8 + cot \u03b8 = ?<\/p>\n

a)\u00a0$\\Large\\frac{1}{9}$<\/p>\n

b)\u00a0$\\Large\\frac{1}{27}$<\/p>\n

c)\u00a0$\\Large\\frac{1}{4}$<\/p>\n

d)\u00a0$\\Large\\frac{1}{3}$<\/p>\n

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Question 7:\u00a0<\/b>If $a^3+b^3+c^3 = 3abc$, then find the value of $(a+b)^2-c^2$.<\/p>\n

a)\u00a0-1<\/p>\n

b)\u00a01<\/p>\n

c)\u00a00<\/p>\n

d)\u00a02<\/p>\n

Question 8:\u00a0<\/b>A person can buy 20 balls with the money he has and if the cost of the ball is decreased by 1 rupee then he can buy 22 balls and he is left with 14 rupees. What is the total money he has ?<\/p>\n

a)\u00a060<\/p>\n

b)\u00a080<\/p>\n

c)\u00a0100<\/p>\n

d)\u00a0120<\/p>\n

Question 9:\u00a0<\/b>2[3x – 4\/5] + 6x\/7 = 8, then find x ?<\/p>\n

a)\u00a04\/5<\/p>\n

b)\u00a05\/6<\/p>\n

c)\u00a06\/7<\/p>\n

d)\u00a07\/5<\/p>\n

Download General Science Notes PDF<\/a><\/p>\n\n

Instructions<\/b><\/p>\n

Question 10:\u00a0<\/b>Value of $221+45\\div 4-7\\times 12$<\/p>\n

a)\u00a0144.50<\/p>\n

b)\u00a0142.50<\/p>\n

c)\u00a0146,25<\/p>\n

d)\u00a0148.25<\/p>\n

Question 11:\u00a0<\/b>Find $[((16)^{\\frac{1}{4}})^{\\frac{2}{3}}]^{\\frac{6}{2}}$ = ?<\/p>\n

a)\u00a0256<\/p>\n

b)\u00a064<\/p>\n

c)\u00a016<\/p>\n

d)\u00a04<\/p>\n

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Question 12:\u00a0<\/b>Sum of two numbers is 99 and difference is 63, then find the smaller number ?<\/p>\n

a)\u00a018<\/p>\n

b)\u00a036<\/p>\n

c)\u00a081<\/p>\n

d)\u00a054<\/p>\n

Question 13:\u00a0<\/b>What is the value of $7^3 + 8^3 + 3 \\times 7 \\times 8 \\times 15 – 15^3$?<\/p>\n

a)\u00a0900<\/p>\n

b)\u00a0169<\/p>\n

c)\u00a0225<\/p>\n

d)\u00a00<\/p>\n

Daily Free RRB Online Tests for RRB Exams<\/a><\/p>\n

RRB NTPC Free Mock Test<\/a><\/p>\n

Question 14:\u00a0<\/b>What is the value of 8.33% of 72.72% of 28.57% of 462 ?<\/p>\n

a)\u00a02<\/p>\n

b)\u00a04<\/p>\n

c)\u00a06<\/p>\n

d)\u00a08<\/p>\n

Question 15:\u00a0<\/b>Steph purchased 150 apples and 343 pineapples and after coming home he observed that 14.28% of pineapples were rotten and 16.66% of apples were rotten. Find the approximate percentage of good fruits available of all the fruits purchased ?<\/p>\n

a)\u00a087%<\/p>\n

b)\u00a085%<\/p>\n

c)\u00a083%<\/p>\n

d)\u00a081%<\/p>\n

Download Current Affairs Questions & Answers PDF<\/a><\/p>\n\n

Answers & Solutions:<\/strong><\/span><\/p>\n

1)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

Due to stoppages, the train travelled 50 km less in an hour.
\nTime required to travel 50 km = $\\dfrac{50}{150} \\times 60 = 20$ minutes<\/p>\n

2)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Let the total work be 14 units.
\n11 units out of 14 units will be completed by A and B together.
\n14 units \u2192 Rs.1400
\n1 unit \u2192 Rs.100
\nRemaining 3 units will be completed by C.
\nThen, C will be paid 3*100 = Rs.300.<\/p>\n

3)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

Time in case 1 = x\/60 hrs<\/p>\n

Time in case 2 = 2x\/40 = x\/20 hrs<\/p>\n

Total time = x\/60 + x\/20 = x\/15\u00a0 hrs<\/p>\n

Total distance = x+2x = 3x km<\/p>\n

Average speed = total distance\/ total time = (3x)\/(x\/15) = 45 kmph<\/p>\n

So the answer is option A.<\/p>\n

4)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

$x^2 – 26x + 169 =0$
\n=> $x^2 – 13x – 13x + 169 = 0$
\n$(x-13)(x-13)=0$
\nHence, x=13<\/p>\n

Thus, the roots of the equation are equal. Hence, it has only one distinct root.<\/p>\n

5)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

we know that $\\csc^{2}\\theta-\\cot^{2}\\theta$=1
\n$(\\csc\\theta+\\cot\\theta)(\\csc\\theta-\\cot\\theta)$=1
\n$(\\csc\\theta+\\cot\\theta) \\times $3=1
\n$\\csc\\theta+\\cot\\theta$=1\/3<\/p>\n

6)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

We know that $ cosec^2 \u03b8 – cot^2 \u03b8 = 1$
\n$ (cosec \u03b8 – cot \u03b8) ( cosec \u03b8 + cot \u03b8) = 1$
\nGiven cosec \u03b8 – cot \u03b8 = 3
\n$ \\therefore 3 ( cosec \u03b8 + cot \u03b8) = 1 $
\ncosec \u03b8 + cot \u03b8 = $\\Large\\frac{1}{3} $<\/p>\n

7)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

If $a^3+b^3+c^3 = 3abc$, then $a+b+c = 0$.
\n$(a+b)^2-c^2 = (a+b+c)(a+b-c) = 0$<\/p>\n

8)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

let the cost of ball be x
\n20x=((x-1)*22)+14
\n20x=22x-22+14
\n2x=8
\nx=4
\nIf x=4 total money with him is 20*4=Rs 80
\nHence, option B is the correct answer.<\/p>\n

9)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

2[3x – 4\/5] + 6x\/7 = 8<\/p>\n

6x – 8\/5 +6x\/7 = 8<\/p>\n

48x\/7 = 8+8\/5<\/p>\n

48x\/7 = 48\/5<\/p>\n

x = 7\/5<\/p>\n

So the answer is option D.<\/p>\n

10)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

By simplification we get
\n=221+11.25-84
\n= 148.25<\/p>\n

11)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

$[((16)^{\\frac{1}{4}})^{\\frac{2}{3}}]^{\\frac{6}{2}}$ =\u00a0$[16]^{\\frac{1}{4}\\times\\frac{2}{3}\\times\\frac{6}{2}}$ = $[16]^{\\frac{1}{2}}$ = $4$<\/p>\n

So the answer is option D.<\/p>\n

12)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

x+y = 99 —-(1)<\/p>\n

x-y = 63 —–(2)<\/p>\n

(1)-(2) ==> x+y-x+y = 99-63 ==> 2y = 36 ==> y = 18<\/p>\n

So the answer is option A.<\/p>\n

13)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

We know that $A^3 + B^3 + C^3 – 3ABC = (A+B+C) \\times (A^2 + B^2 + C^2 – 3ABC)$
\nIn this case, $A+B+C = 7+8-15 = 0$
\nTherefore, the value of $7^3 + 8^3 + 3 \\times 7 \\times 8 \\times 15 – 15^3 = 0$<\/p>\n

14)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

8.33%=1\/12
\n72.72%=8\/11
\n28.57%=2\/7
\nTherefore we have (1\/12)*(8\/11)*(2\/7)*462= (1\/12)(8\/11)(2\/7)*11*7*6
\n=8<\/p>\n

15)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Of 150 apples available (1\/6)th part are rotten so (5\/6) are good.
\nSo number of good apples available =150*(5\/6)
\n=125
\nOf 343 pineapples available (1\/7)th part are rotten and so (6\/7)th part are good.
\nSo number of good pineapples =343*(6\/7)
\n=294
\nTotal number of good fruits=125+294=419
\nPercent of good fruits =(419\/493)*100
\n=85%
\nHence, option B is the correct answer.<\/p>\n\n

DOWNLOAD APP FOR RRB FREE MOCKS<\/a><\/p>\n

We hope this Expected Maths Questions for RRB NTPC Exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

RRB NTPC Expected Maths Questions PDF Download RRB NTPC Expected Maths Questions and Answers PDF. Top 15 RRB NTPC Maths questions based on asked questions in previous exam papers very important for the Railway NTPC exam. Take a free mock test for RRB NTPC Download RRB NTPC Previous Papers PDF Question 1:\u00a0A train travels at […]<\/p>\n","protected":false},"author":41,"featured_media":29865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[169,125,31,1603,1601],"tags":[489,491,1637,1647,1619],"class_list":{"0":"post-29861","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-downloads","8":"category-featured","9":"category-railways","10":"category-rrb-ntpc","11":"category-rrb-ntpc-je","12":"tag-railway-exam","13":"tag-rrb","14":"tag-rrb-exam","15":"tag-rrb-mocks","16":"tag-rrb-ntpc-2019"},"better_featured_image":{"id":29865,"alt_text":"RRB NTPC Expected Maths Questions PDF","caption":"RRB NTPC Expected Maths Questions PDF","description":"RRB NTPC Expected Maths Questions 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