6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

n is an integer chosen at random from the set

{5, 7, 9, 11 }

p is chosen at random from the set

{2, 6, 10, 14, 18}

What is the probability that n + p = 23 ?

A) 0.1	B) 0.2
C) 0.25	D) 0.3

Answer & Explanation Answer: A) 0.1

Explanation:

Each of the integers in the first set could be combined with any from the second set, giving a total of 4 x 5 = 20 possible pairs.

Of these the combinations that could give a sum of 23 are (5 + 18), and (9 + 14)

This means that the probability of getting a sum of 23 is 2/20 = 1/10

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: GRE

0 56019

Q:

45 - [38 - {80 / 4 - (8 - 12 / 3) / 4}] = ?

A) 25	B) 27
C) 26	D) 28

Answer & Explanation Answer: C) 26

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 56012

Q:

Compute of 1848 / 231 - 10 = ?

A) 2	B) -2
C) 188/221	D) 1884/221

Answer & Explanation Answer: B) -2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

2 55974

Q:

$\frac{3}{5} + \frac{3}{7} = ?$

A) 935	B) 612
C) 1135	D) 635

Answer & Explanation Answer: C) 1135

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

1 55592

Q:

Find the odd word/letters/number pair from the given alternatives.

(A) 16-28

(B) 20-30

(C) 30-40

(D) 40-50

A) A	B) B
C) C	D) D

Answer & Explanation Answer: A) A

Explanation:

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 55533

Q:

If 3/5 of x is equal to 4/9 of y, then what is the ratio of x and y?

A) 11 : 15	B) 15 : 23
C) 20 : 27	D) 14 : 25

Answer & Explanation Answer: D) 14 : 25

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

15 55526

Q:

The ratio of two numbers is 3 : 4 and their H.C.F is 4. Their L.C.M is

A) 12	B) 16
C) 24	D) 48

Answer & Explanation Answer: D) 48

Explanation:

Let the numbers be 3x and 4x . Then their H.C.F = x. So, x=4

Therefore, The numbers are 12 and 16

L.C.M of 12 and 16 = 48

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Filed Under: HCF and LCM

127 55449

Q:

The ratio of the cost price and selling price of a shirt is 32 : 37. What is the profit percentage?

A) 15.63	B) 13.51
C) 17.21	D) 14.44

Quantitative Aptitude - Arithmetic Ability Questions

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