6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The salaries of A, B, and C are in the ratio of 1 : 2 : 3. The salary of B and C together is Rs. 6000. By what percent is the salary of C more than that of A?

A) 100 %	B) 200%
C) 300%	D) 600%

Answer & Explanation Answer: B) 200%

Explanation:

Let the salaries of A, B, C be x, 2x and 3x respectively.

Then,2x + 3x = 6000 => x = 1200.

A's salary = Rs. 1200, B's salary = Rs. 2400, and Cs salary Rs. 3600.
Excess of C's salary over A's=[ (2400 /1200) x 100] = 200%.

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Filed Under: Ratios and Proportions

144 59111

Q:

Solve the following

36- [18 - {14 - (15 - 4 / 2 x 2)}]

A) 23	B) 21
C) 20	D) 22

Answer & Explanation Answer: B) 21

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 59085

Q:

If $s + \frac{1}{s} = 4$ , then the value of $s^{2} + \frac{1}{s^{2}}$

A) 14	B) 16
C) 20	D) 24

Answer & Explanation Answer: A) 14

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 58998

Q:

Find the value of $\{{(216)}^{\frac{2}{3}} + {(36)}^{\frac{- 1}{2}}\}$

A) 216/6	B) 218/6
C) 215/6	D) 217/6

Answer & Explanation Answer: D) 217/6

Explanation:

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Exam Prep: Bank Exams

0 58861

Q:

Which of the following statement(s) is/are TRUE?

$I . \frac{\sqrt{225} + \sqrt{441}}{\sqrt{256}} > 2.5 II . \frac{\sqrt{289} + \sqrt{529}}{\sqrt{169}} > 3$

A) Only I	B) Only II
C) Neither I nor II	D) Both I and II

Answer & Explanation Answer: B) Only II

Explanation:

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Exam Prep: Bank Exams

0 58848

Q:

If $\frac{7 x + 9 y}{3 x - 4 y} = \frac{19}{8}$ , then the value of x/y is

A) 148/1	B) 1/148
C) 145/1	D) 1/145

Answer & Explanation Answer: A) 148/1

Explanation:

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Exam Prep: Bank Exams

0 58838

Q:

A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?

A) 3/7	B) 4/7
C) 1/8	D) 3/4

Answer & Explanation Answer: B) 4/7

Explanation:

Let number of balls = (6 + 8) = 14.

Number of white balls = 8.

P (drawing a white ball) = 8 /14 = 4/7.

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Filed Under: Probability

96 58781

Q:

If a=2b/3, b=2c/3, and c=2d/3, then find the ratio of b and d:

A) 8/9	B) 4/9
C) 4/3	D) 5/27

Quantitative Aptitude - Arithmetic Ability Questions

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