6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If x/2 - [4(15/2 - x/3)]/3 = -x/18, then what is the value of x?

A) -10	B) 9/8
C) 10	D) -9/8

Answer & Explanation Answer: C) 10

Explanation:

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Filed Under: Simplification
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Q:

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.

A) 61.8	B) 62.5
C) 61.1	D) 63.9

Answer & Explanation Answer: B) 62.5

Explanation:

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Q:

ABC is a triangle if $\sin (\frac{A + B}{2}) = \frac{\sqrt{3}}{2}$ then the value of Sin $\frac{c}{2}$ is

A) 12	B) 0
C) 1/2	D) 32

Answer & Explanation Answer: C) 1/2

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

If 5 3x < 4 x and 5(2 x) > 2 2x, then x can take which of the following values?

A) 0	B) 1
C) 3	D) -1

Answer & Explanation Answer: B) 1

Explanation:

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Q:

Divide Rs. 368 in the ratio 1:5:8:9. The rupees in the respective ratios are given by

A) 16, 80, 127 7 145	B) 16, 80, 129 & 143
C) 16, 80, 128 & 144	D) 16, 80, 128 & 143

Answer & Explanation Answer: C) 16, 80, 128 & 144

Explanation:

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Filed Under: Ratios and Proportions
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Q:

Given that the polynomial $(x^{2} + ax + b)$ leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0	B) 0 and 3
C) 3 and 0	D) 0 and any interger

Answer & Explanation Answer: D) 0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

A rectangular playground ground of length 125 m and width 75 m, has a walking strip of width 3 m in the middle of the ground, along the longer side. What is the area of the ground without the walking strip?

A) 9375 sq.m	B) 9000 sq.m
C) 9750 sq.m	D) 8625 sq.m

Answer & Explanation Answer: B) 9000 sq.m

Explanation:

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Filed Under: Area
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Q:

The distance between the points (7,7) and (k,-5) is 13. Find k?

A) -2	B) 4
C) -4	D) 2

Quantitative Aptitude - Arithmetic Ability Questions

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