Explore topic-wise MCQs in Aptitude.

This section includes 83 Mcqs, each offering curated multiple-choice questions to sharpen your Aptitude knowledge and support exam preparation. Choose a topic below to get started.

51.

(243)n/5 x 32n + 1 = ?

9n x 3n - 1

A. 1
B. 2
C. 9
D. 3
E. <sup><i class="ga-var">n</i></sup>
Answer» D. 3
Discussion
52.

Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:

A. 1.45
B. 1.88
C. 2.9
D. 3.7
Answer» D. 3.7
Discussion
53.

If 5a = 3125, then the value of 5(a - 3) is:

A. 25
B. 125
C. 625
D. 1625
Answer» B. 125
Discussion
54.

If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

A. 0
B. 2
C. 4
D. 6
Answer» D. 6
Discussion
55.

(17)3.5 x (17)? = 178

A. 2.29
B. 2.75
C. 4.25
D. 4.5
Answer» E.
Discussion
56.

1 + 1 + 1 = ?
1 + x(b - a) + x(c - a) 1 + x(a - b) + x(c - b) 1 + x(b - c) + x(a - c)

A. 0
B. 1
C. <i class="ga-var">x</i>
D. <sup><i class="ga-var">a</i> - <i class="ga-var">b</i> - <i class="ga-var">c</i></sup>
E. None of these
Answer» C. <i class="ga-var">x</i>
Discussion
57.

(256)0.16 x (256)0.09 = ?

A. 4
B. 16
C. 64
D. 256.25
Answer» B. 16
Discussion
58.

If m and n are whole numbers such that mn = 121, the value of (m - 1)n + 1 is:

A. 1
B. 10
C. 121
D. 1000
Answer» E.
Discussion
59.

The value of 273 34 310 is equal to :

A. 9
B. 27
C. 81
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center">27</td></table>
Answer» C. 81
Discussion
60.

The expression
( - 1 )132
is equivalent to :
5- 1 + 3- 1

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 16</center></td></tr><td align="center">9</td></table>
B. <table><tr><td rowspan="2">- </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 15</center></td></tr><td align="center">8</td></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 15</center></td></tr><td align="center">8</td></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 17</center></td></tr><td align="center">8</td></table>
Answer» D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 17</center></td></tr><td align="center">8</td></table>
Discussion
61.

The value of ( 8 ) - ( 2 - 2 ) is :

A. <table><tr><td></td><td rowspan="2">-</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center><sub>1</sub></center></td></tr><tr><td rowspan="2">2</td><td align="center"><sup>4</sup></td></tr></table>
B. <table><tr><td></td><td rowspan="2">-</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center><sub>3</sub></center></td></tr><tr><td rowspan="2">2</td><td align="center"><sup>4</sup></td></tr></table>
C. <table><tr><td></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center><sub>3</sub></center></td></tr><tr><td rowspan="2">2</td><td align="center"><sup>4</sup></td></tr></table>
D. <table><tr><td></td><td rowspan="2">-</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center><sub>1</sub></center></td></tr><tr><td rowspan="2">2</td><td align="center"><sup>2</sup></td></tr></table>
Answer» C. <table><tr><td></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center><sub>3</sub></center></td></tr><tr><td rowspan="2">2</td><td align="center"><sup>4</sup></td></tr></table>
Discussion
62.

If 102/5 108/5 = 10n, the value of n is :

A. 2
B. 3
C. 6
D. 4
Answer» B. 3
Discussion
63.

The value of 12x2y4z3 (2xy2 3yz2) will be :

A. 2xyz
B. xyz
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">xyz</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2</center></td></tr><tr><td style="text-align: center;">xyz</td></tr></table>
Answer» B. xyz
Discussion
64.

The value of
x-2 y-4
y-2
 is :
x-3 . y-1 x-1
A. y
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">y</td></tr></table>
C. xy
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">xy</td></tr></table>
Answer» C. xy
Discussion
65.

if 4 43/2 4-3 = 2x, the value of x will be :

A. 16
B. 8
C. 12
D. 4
Answer» D. 4
Discussion
66.

The positive exponential function of
a-3 a-4
 is :
a-5

A. a
B. <sup>2</sup>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">a<sup>3</sup></td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">a<sup>4</sup></td></tr></table>
E. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">a<sup>2</sup></td></tr></table>
Answer» E. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">a<sup>2</sup></td></tr></table>
Discussion
67.

L M

A. L
B. M
C. 2
D. 4
Answer» B. M
Discussion
68.

5 + x = 3

A. 64
B. 125
C. 9
D. 27
Answer» B. 125
Discussion
69.

Find the quotient when

A. 2/a
B. 2a
C. a/2
D. -1/a
Answer» E.
Discussion
70.

What is the difference between the third power of 2 and the second power of 3?

A. 2
B. 5
C. 3
D. 1
Answer» E.
Discussion
71.

Third power of 4 is equivalent to :

A. 64
B. 81
C. 12
D. 49
Answer» B. 81
Discussion
72.

( x2/3)- 3/4 is equivalent to :

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center">x</td></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center"> <span style=" text-decoration: overline;">x</span></td></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center">x<sup>2</sup></td></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center">x<sup>- 2</sup></td></table>
Answer» C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><td align="center">x<sup>2</sup></td></table>
Discussion
73.

56 + 56 + 56 + .... ) 22 = ?

A. 0
B. 1
C. 2
D. 8
Answer» D. 8
Discussion
74.

( 42 x 229 ) ( 9261)1/3 = ?

A. 448
B. 452
C. 456
D. 458
E. None of the above
Answer» E. None of the above
Discussion
75.

If 2n = 64 , what will be the value of n?

A. 8
B. 4
C. 12
D. 16
Answer» D. 16
Discussion
76.

(16) 3/4 + 2 3 + (8) 2/3 is equivalent to :

A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>9</center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>5</center></td></tr><tr><td style="text-align: center;">4</td></tr></table>
Answer» B. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td></tr><tr><td style="text-align: center;">2</td></tr></table>
Discussion
77.

[(3-2)-5]1/5 + [ (4-3)-6]1/6 - 1
 is equivalent to :
[ ( 2-3 )-4 ]1/4

A. 9
B. 8
C. 27
D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>1</center></td></tr><tr><td style="text-align: center;">3</td></tr></table>
Answer» B. 8
Discussion
78.

(100)0 is equivalent to :

A. 0
B. 10
C. 1
D. 100
Answer» D. 100
Discussion
79.

1/1 + xb - a + xc - a + 1/1 + xa-b + xc - b + 1/1 + xb - c+ xa - c = ?

A. x
B. <sup>a - b - c</sup>
C. 1
D. 0
E. 3
Answer» C. 1
Discussion
80.

Solve the below equation and find the value of

A. 520
B. 169
C. 28561
D. 14280
E. None of the above
Answer» C. 28561
Discussion
81.

[(12)-2]2/[(12)2]-2 = ?

A. 12
B. 4.8
C. 12/144
D. 1
E. None of the above
Answer» E. None of the above
Discussion
82.

(16)9 (16)4 x (16)3 = (16)?

A. 6.75
B. 8
C. 10
D. 12
E. None of the above
Answer» C. 10
Discussion
83.

[ (11)3 x (6)2] (4)3 = ?

A. 2994.75
B. 748.6875
C. 272.25
D. 4492.125
E. None of the above
Answer» C. 272.25
Discussion