{"id":33385,"date":"2019-08-12T17:14:16","date_gmt":"2019-08-12T11:44:16","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=33385"},"modified":"2019-08-12T17:14:16","modified_gmt":"2019-08-12T11:44:16","slug":"square-root-questions-for-rrb-ntpc-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/square-root-questions-for-rrb-ntpc-pdf\/","title":{"rendered":"Square Root Questions for RRB NTPC PDF"},"content":{"rendered":"

Square Root Questions for RRB NTPC PDF<\/strong><\/span><\/h1>\n

Download RRB NTPC Square Root\u00a0 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 Square Root Questions for RRB NTPC 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>What is the square root of 5041?<\/p>\n

a)\u00a079<\/p>\n

b)\u00a081<\/p>\n

c)\u00a071<\/p>\n

d)\u00a069<\/p>\n

Question 2:\u00a0<\/b>Which of the numbers given below is the square root of 16384?<\/p>\n

a)\u00a0132<\/p>\n

b)\u00a0128<\/p>\n

c)\u00a0118<\/p>\n

d)\u00a0122<\/p>\n

Question 3:\u00a0<\/b>The square root of which of the following numbers is irrational?<\/p>\n

a)\u00a02916<\/p>\n

b)\u00a04489<\/p>\n

c)\u00a01024<\/p>\n

d)\u00a07840<\/p>\n

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

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

Question 4:\u00a0<\/b>What is the square root of 9409?<\/p>\n

a)\u00a083<\/p>\n

b)\u00a087<\/p>\n

c)\u00a089<\/p>\n

d)\u00a097<\/p>\n

Question 5:\u00a0<\/b>Square root of 0.9 is equal to<\/p>\n

a)\u00a00.03<\/p>\n

b)\u00a00.3<\/p>\n

c)\u00a00.9487<\/p>\n

d)\u00a00.9463<\/p>\n

Question 6:\u00a0<\/b>The square root of 27225 is:<\/p>\n

a)\u00a0165<\/p>\n

b)\u00a0155<\/p>\n

c)\u00a0175<\/p>\n

d)\u00a0145<\/p>\n

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

Question 7:\u00a0<\/b>Which of the numbers given below is the square root of 15376?<\/p>\n

a)\u00a0122<\/p>\n

b)\u00a0124<\/p>\n

c)\u00a0134<\/p>\n

d)\u00a0128<\/p>\n

Question 8:\u00a0<\/b>If the roots of the quadratic equation $x^2 – 8x + 14 = 0$ are a and b, then calculate the ratio of the difference of the squares to the difference of cubes of the roots of the given equation.<\/p>\n

a)\u00a0(2\/25)<\/p>\n

b)\u00a0$(2\/5)^2$<\/p>\n

c)\u00a025\/4<\/p>\n

d)\u00a0None of these<\/p>\n

Question 9:\u00a0<\/b>The Square root of which of the following is a rational number?<\/p>\n

a)\u00a02361.96<\/p>\n

b)\u00a02758.28<\/p>\n

c)\u00a072568.4<\/p>\n

d)\u00a062504.9<\/p>\n

Question 10:\u00a0<\/b>The square root of which of the following is a rational number?<\/p>\n

a)\u00a06250.49<\/p>\n

b)\u00a01250.49<\/p>\n

c)\u00a05768.28<\/p>\n

d)\u00a01354.24<\/p>\n

Question 11:\u00a0<\/b>The square root of $1 + x^2 + \\sqrt{1 + x^2 + x^4}$is<\/p>\n

a)\u00a0$\\frac{1}{\\sqrt2} \\left[ \\sqrt{1 + x + x^2 } + \\sqrt{1 – x + x^2 } \\right]$<\/p>\n

b)\u00a0$\\frac{1}{\\sqrt2}\u00a0\\left[ \\sqrt{1 + x + x^2 } – \\sqrt{1 – x + x^2 } \\right]$<\/p>\n

c)\u00a0$\\frac{1}{\\sqrt2}\u00a0\\left[ \\sqrt{1 + x^2 + x^4 + x^8 }\\right] $<\/p>\n

d)\u00a0None of the above<\/p>\n

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

Question 12:\u00a0<\/b>The square root of $27-4\\sqrt{35}$ is :<\/p>\n

a)\u00a0$\\pm(\\sqrt{5}+2\\sqrt{7})$<\/p>\n

b)\u00a0$\\pm(\\sqrt{5}-2\\sqrt{7})$<\/p>\n

c)\u00a0$\\pm(\\sqrt{7}-2\\sqrt{5})$<\/p>\n

d)\u00a0$\\pm(\\sqrt{7}+2\\sqrt{5})$<\/p>\n

Question 13:\u00a0<\/b>Two digit number has its tens digit as 4 less than the thrice of units digit.If the units and tens digits are interchanged then its value decreases by 18. Find the square root of the two digit number ?<\/p>\n

a)\u00a04.69<\/p>\n

b)\u00a07.28<\/p>\n

c)\u00a09.1<\/p>\n

d)\u00a08.3<\/p>\n

Question 14:\u00a0<\/b>The square roots of how many factors of 2250 will be natural numbers?<\/p>\n

a)\u00a015<\/p>\n

b)\u00a04<\/p>\n

c)\u00a05<\/p>\n

d)\u00a06<\/p>\n

Question 15:\u00a0<\/b>What is the square root of $214 – 78\\sqrt{5}$<\/p>\n

a)\u00a0$13-3\\sqrt{5}$<\/p>\n

b)\u00a0$17-4\\sqrt{5}$<\/p>\n

c)\u00a0$13-6\\sqrt{5}$<\/p>\n

d)\u00a0$17-3\\sqrt{5}$<\/p>\n

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

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

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

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

The factors of 5041 are 1, 71 and 5041.
\nHence, The square root of 5041 is 71.<\/p>\n

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

16384=2*2*2*2*2*2*2*2*2*2*2*2*2*2
\nSquare root of 16384=2*2*2*2*2*2*2
\n=128<\/p>\n

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

‘2916’ is the square of 54. It is a perfect square.
\n‘4489’ is the square of 67. It is a perfect square.
\n‘1024’ is the square of 32.\u00a0It is a perfect square.
\n‘7840’ is not a perfect square and the square root of 7840 is an irrational number.
\nHence, option D\u00a0is the correct answer.<\/p>\n

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

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

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

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

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

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

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

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

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

We have to find $27-4\\sqrt{35}$<\/p>\n

We can write it as :<\/p>\n

= $\\sqrt{{27} – 2\u00a0\\times 2\\times \\sqrt{5}\u00a0\\times \\sqrt{7}}$<\/p>\n

Since, $(a^2 + b^2 – 2ab) = (a-b)^2$<\/p>\n

= $\\sqrt{(2\\sqrt{5})^2 + (\\sqrt{7})^2 – 2\\times2\\sqrt{5}\\times\\sqrt{7}}$<\/p>\n

= $\\sqrt{(\\sqrt{7} – 2\\sqrt{5})^2}$<\/p>\n

= $\\pm(\\sqrt{7} – 2\\sqrt{5})$<\/p>\n

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

let the number be xy
\nGiven x=3y-4
\n10x+y-(10y+x)=18
\n9(x-y)=18
\nx-y=2
\n3y-4-y=2
\n2y=6
\ny=3
\nRequired number is 53
\nSquare root of 53=7.28<\/p>\n

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

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

we have $(a-b)^{2}$=$a^{2}+b^{2}-2ab$<\/p>\n

Comparing this with $214-78\\sqrt{5}$ = $a^{2}+b^{2}-2ab$<\/p>\n

We have 214=$a^{2}+b^{2}$<\/p>\n

& $ab = 39\\sqrt{5}$<\/p>\n

For a=13 and b=3$\\sqrt{5}$; 2ab=2*13*3$\\sqrt{5}$<\/p>\n

And so required answer is 13-3$\\sqrt{5}$<\/p>\n\n

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

We hope this Square Root Questions pdf\u00a0 for RRB NTPC Exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

Square Root Questions for RRB NTPC PDF Download RRB NTPC Square Root\u00a0 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:\u00a0What is the […]<\/p>\n","protected":false},"author":41,"featured_media":33392,"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":[491,1637,2052,1647,1619],"class_list":{"0":"post-33385","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-rrb","13":"tag-rrb-exam","14":"tag-rrb-maths","15":"tag-rrb-mocks","16":"tag-rrb-ntpc-2019"},"better_featured_image":{"id":33392,"alt_text":"Square Root Questions for RRB NTPC PDF","caption":"Square Root Questions for RRB NTPC PDF","description":"Square Root Questions for RRB NTPC 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