Explore topic-wise MCQs in Aptitude.

This section includes 456 Mcqs, each offering curated multiple-choice questions to sharpen your Aptitude knowledge and support exam preparation. Choose a topic below to get started.

301.

The difference between two numbers is 9 and the difference between their squares is 207. The numbers are :

A. 17 and 8
B. 16 and 7
C. 15 and 6
D. 23 and 14
Answer» C. 15 and 6
Discussion
302.

The sum of two numbers is 37 and the difference of their squares is 185. then the difference between the two numbers is :

A. 10
B. 4
C. 5
D. 3
Answer» D. 3
Discussion
303.

1008 divided by which single digit number gives a perfect square ?

A. 9
B. 4
C. 8
D. 7
Answer» E.
Discussion
304.

The least number by which 20184 must be multiplied so as to make the product a perfect square is

A. 2
B. 3
C. 5
D. 6
Answer» E.
Discussion
305.

The digit in the unit place in the square root of 66049 is

A. 3
B. 7
C. 8
D. 2
Answer» C. 8
Discussion
306.

The smallest whole number that is to be multiplied with 59535 to make a perfect square number is x. The sum of digits of x is

A. 9
B. 5
C. 7
D. 6
Answer» E.
Discussion
307.

The value of (11111)

A. 12344321
B. 121212121
C. 123454321
D. 11344311
Answer» D. 11344311
Discussion
308.

A teacher wants to arrange his students in an equal number of rows and columns. If there are 1369 students, the number of students in the last row are

A. 37
B. 33
C. 63
D. 47
Answer» B. 33
Discussion
309.

The square root of 2 + 3 is 2

A. <table><tr><td rowspan="2"> </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">( <span style=" text-decoration: overline;">3</span> + 1)</td></tr><tr><td style="text-align: center;"> <span style=" text-decoration: overline;">2</span></td></tr></table>
B. <table><tr><td rowspan="2"> </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">( <span style=" text-decoration: overline;">3</span> 2)</td></tr><tr><td style="text-align: center;">2</td></tr></table>
C. None of these
D. <table><tr><td rowspan="2"> </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">( <span style=" text-decoration: overline;">3</span> 1)</td></tr><tr><td style="text-align: center;">2</td></tr></table>
Answer» D. <table><tr><td rowspan="2"> </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td><td rowspan="2">( <span style=" text-decoration: overline;">3</span> 1)</td></tr><tr><td style="text-align: center;">2</td></tr></table>
Discussion
310.

A General of Army wants to form a square from 36562 armies. After arrangement, he found some armies left. How many armies were left ?

A. 81
B. 36
C. 97
D. 65
Answer» B. 36
Discussion
311.

A number of boys raised Rs. 12,544 for a famine fund, each boy has given as many rupees as there were boys. The number of boys was :

A. 102
B. 112
C. 122
D. 132
Answer» C. 122
Discussion
312.

If 5416 * 6 is a perfect square, then the digit at * is :

A. 9
B. 4
C. 6
D. 5
Answer» B. 4
Discussion
313.

A number when divided by 6 leaves remainder 3. When the square of the same number is divided by 6, the remainder is:

A. 0
B. 2
C. 1
D. 3
Answer» E.
Discussion
314.

The product of two positive integers is 2048 and one of them is twice the other. The smaller number is

A. 32
B. 64
C. 16
D. 1024
Answer» B. 64
Discussion
315.

If the sum of squares of two real numbers is 41 and their sum is 9, then the sum of cubes of these two numbers is

A. 169
B. 209
C. 189
D. 198
Answer» D. 198
Discussion
316.

The least number that should be subtracted from the number 32146 to make it a perfect square is :

A. 305
B. 105
C. 205
D. 405
Answer» C. 205
Discussion
317.

The sum of the perfect squares between 120 and 300 is

A. 1400
B. 1296
C. 1024
D. 1204
Answer» B. 1296
Discussion
318.

Find the least number which must be subtracted from 18265 to make it a perfect square.

A. 30
B. 38
C. 40
D. 45
Answer» D. 45
Discussion
319.

three numbers are such that their sum is 50, product is 3750 and the sum of their reciprocals is 31/50 .Find the sum of the squares of the three numbers.

A. 2500
B. 1250
C. 950
D. 122
Answer» D. 122
Discussion
320.

The sum of three positive numbers is 18 and their product is 162. If the sum of two numbers is equal to the third number, then the sum of squares of the numbers is

A. 120
B. 126
C. 132
D. 138
Answer» C. 132
Discussion
321.

A tourist spends daily as many rupees as the number of days of his total tour. If his total expenses were 361, then how many days did his tour last ?

A. 17 days
B. 19 days
C. 21 days
D. 31 days
Answer» C. 21 days
Discussion
322.

If a = 64 and b = 289, then the value of (

A. 2
B. <sup>1/2</sup>
C. 2
D. 4
E. 2
Answer» B. <sup>1/2</sup>
Discussion
323.

The least number which must be added to 1728 to make it a perfect square is ______.

A. 36
B. 32
C. 38
D. 30
Answer» B. 32
Discussion
324.

By which smallest number should 20184 be multiplied so that it becomes a perfect square ?

A. 2
B. 3
C. 5
D. 6
Answer» E.
Discussion
325.

By which smallest number should 5808 be multiplied so that it becomes a perfect square?

A. 2
B. 7
C. 11
D. 3
Answer» E.
Discussion
326.

What is the least number which should be subtracted from 0.000326, to have perfect square ?

A. 0.000004
B. 0.000002
C. 0.04
D. 0.02
Answer» C. 0.04
Discussion
327.

The least number that must be subtracted from 63520 to make the result a perfect square is :

A. 16
B. 20
C. 24
D. 30
Answer» B. 20
Discussion
328.

The product of two numbers is 45 and their difference is 4. The sum of squares of the two numbers is

A. 135
B. 240
C. 73
D. 106
Answer» E.
Discussion
329.

The value of (3 + 8) + 1 (6 + 4 2) is 3 8

A. 8
B. 1
C.
D. <span style=" text-decoration: overline;">2</span>
E. 0
Answer» E. 0
Discussion
330.

The sum of a positive integer and its square is 2450. The positive integer is

A. 45
B. 48
C. 49
D. 50
Answer» D. 50
Discussion
331.

The square root of 0.342 0.684 is :0.000342 0.000171

A. 250
B. 2500
C. 2000
D. 4000
Answer» D. 4000
Discussion
332.

1 1 64 1.44 is equal to4125

A. <table><tr><td rowspan="2"> 1</td><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">25</td></tr></table>
B. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>24</center></td></tr><tr><td style="text-align: center;">25</td></tr></table>
C. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>23</center></td></tr><tr><td style="text-align: center;">25</td></tr></table>
D. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>21</center></td></tr><tr><td style="text-align: center;">25</td></tr></table>
Answer» C. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>23</center></td></tr><tr><td style="text-align: center;">25</td></tr></table>
Discussion
333.

The value of 0.441 is equal to : 0.625

A. 0.048
B. 0.84
C. 0.48
D. 0.084
Answer» C. 0.48
Discussion
334.

If (102)

A. 0.306
B. 0.0306
C. 11.122
D. 11.322
Answer» E.
Discussion
335.

The square root of (272

A. 256
B. 200
C. 240
D. 144
Answer» D. 144
Discussion
336.

The square root of : (0.75)3 + [0.75 + (0.75)2 + 1 ] is : 1 0.75

A. 4
B. 3
C. 2
D. 1
Answer» D. 1
Discussion
337.

The square root of 9.5 0.085 is :0.017 0.019

A. 0.5
B. 5
C. 50
D. 500
Answer» D. 500
Discussion
338.

0.00001225 is equal to :0.00005392

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>25</center></td></tr><tr><td style="text-align: center;">77</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>35</center></td></tr><tr><td style="text-align: center;">73</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>35</center></td></tr><tr><td style="text-align: center;">77</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>25</center></td></tr><tr><td style="text-align: center;">73</td></tr></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>35</center></td></tr><tr><td style="text-align: center;">77</td></tr></table>
Discussion
339.

If 2 = 1.414 , the square root of 2 1 is nearest to 2 + 1

A. 0.172
B. 0.414
C. 0.586
D. 1.414
Answer» B. 0.414
Discussion
340.

48.4 is equal to0.289

A. <table><tr><td rowspan="2">129</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>7</center></td></tr><tr><td style="text-align: center;">17</td></tr></table>
B. <table><tr><td rowspan="2">1</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>5</center></td></tr><tr><td style="text-align: center;">17</td></tr></table>
C. <table><tr><td rowspan="2">12</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>16</center></td></tr><tr><td style="text-align: center;">17</td></tr></table>
D. <table><tr><td rowspan="2">12</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">17</td></tr></table>
Answer» D. <table><tr><td rowspan="2">12</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">17</td></tr></table>
Discussion
341.

If 3 = 1.7321, the value of 192 1 48 752

A. 8.661
B. 4.331
C. 1.7321
D. 1.732
Answer» D. 1.732
Discussion
342.

1101 is equal to4

A. 12.0
B. 11.5
C. 11.0
D. 10.5
Answer» E.
Discussion
343.

The number, whose square is equal to the difference of the squares of the numbers 68 and 32, is

A. 36
B. 48
C. 60
D. 64
Answer» D. 64
Discussion
344.

Simplify : 333 &amp;div; 91 2 316479

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>45</center></td></tr><tr><td style="text-align: center;">256</td></tr></table>
B. <table><tr><td rowspan="2">1</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>17</center></td></tr><tr><td style="text-align: center;">28</td></tr></table>
C. <table><tr><td rowspan="2">4</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td></tr><tr><td style="text-align: center;">8</td></tr></table>
D. <table><tr><td rowspan="2">2</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td></tr><tr><td style="text-align: center;">16</td></tr></table>
Answer» E.
Discussion
345.

The digit at the unit s place in the square-root of 15876 is :

A. 8
B. 6
C. 4
D. 2
Answer» C. 4
Discussion
346.

The fourth root of 24010000 is

A. 7
B. 49
C. 490
D. 70
Answer» E.
Discussion
347.

If x is a perfect square integer such that 7 < (2x 3) < 17, then the value of x is :

A. 25
B. 16
C. 9
D. 4
Answer» D. 4
Discussion
348.

The sum of the squares of two positive integers is 100 and the difference of their squares is 28. The sum of the numbers is :

A. 12
B. 13
C. 14
D. 15
Answer» D. 15
Discussion
349.

Which smallest number must be added to 2203 so that we get a perfect square ?

A. 1
B. 3
C. 6
D. 8
Answer» D. 8
Discussion
350.

The number, whose square is equal to the difference between the squares of 975 and 585, is :

A. 780
B. 390
C. 1560
D. 130
Answer» B. 390
Discussion