6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If (1/cos θ) – (1/cot θ) = 1/P, then what is the value of cos θ?

A) (P + 1)/(P – 1)	B) (P2+ 1)/2P
C) 2(P2+ 1)/P	D) 2P/(P2+ 1)

Answer & Explanation Answer: D) 2P/(P2+ 1)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If $x = 8 + 2 \sqrt{15}$ , then what is the value of $\sqrt{x} + \frac{1}{\sqrt{x}}$ ?

A) 2√15	B) 3√5
C) (3√5+√3)/2	D) 3√2+3

Answer & Explanation Answer: C) (3√5+√3)/2

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Ashok can row upstream at 8 kmph and downstream at 12kmph.What is the speed of the stream ?

A) 6 km/hr	B) 3 km/hr
C) 2 km/hr	D) 4.5 km/hr

Answer & Explanation Answer: C) 2 km/hr

Explanation:

If the speed downstream is a kmph and the speedup stream is b kmph then
Speed of the stream = 1/2 x (a–b) kmph
Speed downstream a = 12kmph
Speed upstream b = 8 kmph
Speed of the stream = 1/2 x (a–b) = 1/2 x (12–8)= 4/2 = 2 kmph

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

A, B and C start a business and the ratio of their investment is 8 : 5 : 3. If at the end the ratio of their profits is 4 : 15 : 6, then what is the ratio of time period of their investment?

A) 1 : 6 : 5	B) 2 : 3 : 4
C) 1 : 6 : 4	D) 2 : 6 : 3

Answer & Explanation Answer: C) 1 : 6 : 4

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If a watch is being sold at Rs 7,225 which is marked at Rs 8,500, then what is the discount (in %) at which the watch is being sold?

A) 24	B) 15
C) 25	D) 20

Answer & Explanation Answer: B) 15

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Ratio of A's age to B's age is 4:3. 'A' will be 26 years old after 6 years. The age of B now is

A) 12 years	B) 21 years
C) 13 years	D) 15 years

Answer & Explanation Answer: D) 15 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

Amar can complete a work in 30 days and Raman can complete the same work in 15 days. If both of them work together, then in 4 days what percent of the total work will be completed?

A) 15	B) 37
C) 40	D) 45

Answer & Explanation Answer: C) 40

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

An article is listed at Rs 2375. A man purchases it at two successive discounts of 50% and 25% and spends Rs 165 on repairing of article. If he sells thearticle at a profit of 62.5%, then what is the selling price (in Rs) of the article?

A) 1467.6	B) 1492.6
C) 1715.39	D) 1467.6

Quantitative Aptitude - Arithmetic Ability Questions

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