6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If $\frac{a}{b} + \frac{b}{a} = 1,$ then the value of $a^{3} + b^{3}$ is

A) 1	B) 0
C) -1	D) 2

Answer & Explanation Answer: B) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If tan A = 1/2 and tan B = 1/3, then what is the value of tan (2A + B)?

A) 1	B) 3
C) 5	D) 9

Answer & Explanation Answer: B) 3

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Q:

Choose the most appropriate answer:A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9 Km/h and the speed of the current is 3 Km/h, the distance between A and B is

A) 9 km	B) 10 km
C) 11 km	D) 12 km

Answer & Explanation Answer: D) 12 km

Explanation:

Speed of boat in still water = 9 km/hr

Speed of current = 3km/hr

Downstream speed = 9+3 = 12 km/hr

Upstream speed = 9-3 =6 km/hr

Let the distance between A to B be x km.

x/6 + x/12 = 3x + 2x = 36
3x = 36
x = 12 km

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

If $\frac{ab - 1}{b} = \frac{cb - 1}{c} = \frac{ac - 1}{a}$ , then $(\frac{a}{c} + \frac{b}{a} + \frac{c}{b})$

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: C) 3

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Q:

The difference between cost price and selling price is Rs 494. If loss percentage is 19%, then what is the selling price (in Rs)?

A) 2106	B) 2600
C) 3094	D) 2208

Answer & Explanation Answer: A) 2106

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

Which of the numbers given below is the square root of 14161?

A) 119	B) 121
C) 131	D) 141

Answer & Explanation Answer: A) 119

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Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

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Q:

A can do a work in 15 days and B in 20 days. If they work on it together for 5 days, then what fraction of work is left?

A) 2/9	B) 3/10
C) 5/12	D) 1/4

Answer & Explanation Answer: C) 5/12

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

In 250 litres mixture of soda and water the ratio of amount of soda to that of water is 7 : 18. In order to make this ratio 2 : 3, how many more litres of soda should be added?

A) 37.5	B) 42.5
C) 45	D) 50

Quantitative Aptitude - Arithmetic Ability Questions

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