Quantitative Aptitude

General Questions

Quantitative Aptitude Exercise Mode

General Questions

Practice and master this topic with our carefully crafted questions.

10 Questions
15 Minutes
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Question 1
Which of the following fractions is greater than 3/4 and less than 5/6 ?

A
3/5
B
4/5
C
7/5
D
9/5
Correct Answer: Option B

3 = 0.75,    5 = 0.833,    1 = 0.5,    2 = 0.66,   
4 6 2 3

4 = 0.8,    9 = 0.9.
5 10

Clearly, 0.8 lies between 0.75 and 0.833.

4 lies between 3 and 5 .
5 4 6

Question 2
0.04 x 0.0162 is equal to:

A
6.48 x 10-4
B
6.48 x 10-5
C
6.48 x 10-6
D
6.48 x 10-3
Correct Answer: Option A

4 x 162 = 648. Sum of decimal places = 6.
So, 0.04 x 0.0162 = 0.000648 = 6.48 x 10-4

Question 3
Which of the following are in descending order of their value ?

A
1/3 , 2/5 , 3/7 , 4/5 , 5/6 , 6/7
B
1/3 , 2/5 , 3/5 , 4/7 , 5/6 , 6/7
C
1/3 , 2/5 , 3/5 , 5/6 , 4/7 , 6/7
D
2/5 , 3/5 , 1/3 , 4/7 , 5/6 , 6/7
Correct Answer: Option D

First take LCM of denominators.

Here it s 210.

Then multiply with multiplier that makes denominators 210.

By doing this.

First becomes 70/210, 84/210 and soon.

Hence ans D.

Question 4
The value of (0.96)3 - (0.1)3 is:
(0.96)2 + 0.096 + (0.1)2

A
0.97
B
0.86
C
1.06
D
0.95
Correct Answer: Option B

Given expression :

= (0.96)3 - (0.1)3
(0.96)2 + (0.96 x 0.1) + (0.1)2
= a3 - b3
a2 + ab + b2
= (a - b)
= (0.96 - 0.1)
= 0.86
Question 5

If 144 = 14.4 , then the value of x is:
0.144 x

A
0.0144
B
144
C
14.4
D
1.44
Correct Answer: Option A

144 = 14.4
0.144 x

144 x 1000 = 14.4
144 x

x = 14.4 = 0.0144
1000

Question 6

Evaluate : (2.39)2 - (1.61)2
2.39 - 1.61

A
2
B
6
C
4
D
8
Correct Answer: Option C
Given Expression = a2 - b2 = (a + b)(a - b)
a - b (a - b)
= (a + b) = (2.39 + 1.61) = 4.
Question 7
What decimal of an hour is a second ?

A
.0256
B
.0025
C
.000126
D
.00027
Correct Answer: Option D

Required decimal :

= 1/60 x 60

= 1/3600 = .00027

Question 8
If 47. 2506 = 4*A + 7/B + 2*C + 5/D + 6*E, then the value of 5*A + 3*B + 6*C + D + 3*E is :

A
55.6003
B
213.003
C
53.603
D
153.6003
Correct Answer: Option D

4*A + 7/B + 2*C + 5/D + 6*E =47.2506
=> 4 * A + 7/B + 2 *C + 5/D + 6*E = 40 + 7 + 0.2 + 0.05 + 0.0006

Comparing the terms on both sides, we get :

4*A =40, 7/B = 7, 2*C = 0.2, 5/D = 0.05, 6*E = 0.0006
A = 10,
B = 1,
C = 0.1,
D = 100,
E = 0.0001.

5*A + 3*B + 6*C + D + 3*E =(5*10) + (3*1) + (6*0.1) +100 +(3*0.0001)

=50 + 3 + 0.6 + 100 + 0.003 = 153.6003

Question 9
If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is :

A
7300/77
B
730/77
C
73/77
D
7.3/77
Correct Answer: Option C

x / y = 0.04 / 1.5 = 4 / 150 = 2 / 75.

= > ( (y - x) / (y+x) )

= (1 - (x / y)) / ( 1 + ( x / y))

= (1 - 2/75) / (1 + 2/75)

= 73/77

Question 10
When 0.232323..... is converted into a fraction, then the result is:

A
1/5
B
23/100
C
2/9
D
23/99
Correct Answer: Option D
0.232323... = 0.23 = 23
99
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