6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

A bag has Rs 43 in the form of 5-rupee, 50-paise and 10-paise coins in the ratio of 1:5:11. What is the total number of 50-paise coins?

A) 5	B) 25
C) 55	D) 50

Answer & Explanation Answer: B) 25

Explanation:

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

A's salary is 50% more than that of B. Then B's salary is less than that of A by

A) 50%	B) 44%
C) 33 1/3%	D) 46 1/2%

Answer & Explanation Answer: C) 33 1/3%

Explanation:

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If A = 30°, B = 60° and C = 135°, then what is the value of $\sin^{3} A + \cos^{3} B + \tan^{3} C - 3 \sin A \cos B \tan C$ ?

A) 0	B) 1
C) 8	D) 9

Answer & Explanation Answer: A) 0

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If a + b + c = 11 and ab + bc + ca = 17, then what is the value of $a^{3} + b^{3} + c^{3} - 3 abc$ ?

A) 121	B) 168
C) 300	D) 770

Answer & Explanation Answer: D) 770

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

$∆$ PQR is right angled at Q. If m∠R = 45°, then find the value of (cosecP - √3/2)

A) (3√3-1)/3	B) 2/√3
C) (2-√3)/√3	D) (2√2-√3)/2

Answer & Explanation Answer: D) (2√2-√3)/2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

A) Rs 25000	B) Rs 15625
C) Rs 17968.75	D) Rs 29218.75

Answer & Explanation Answer: A) Rs 25000

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

A field can be reaped by 12 men or 18 women in 14 days. In how many days can 8 men and 16 women reap it?

A) 26 days	B) 24 days
C) 9 days	D) 8 days

Answer & Explanation Answer: C) 9 days

Explanation:

12 men or 18 women can complete in 14 days

8 men and 16 women can complete in how many days

12men = 18 women (Comparing efficiencies)

1men = 18/12 = 1.5 women

8 men and 16 women = 12women + 16 women = 28 women

18 women completes in 14 days

1 woman completes in 14*18 days

28 women completes in (14*18)/28 days = 9 days

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

A train is moving at the speed of 72 km/hr. How many seconds will it take to cover a distance of 1400 m ?

A) 70	B) 80
C) 72	D) 84

Quantitative Aptitude - Arithmetic Ability Questions

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