6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

$\cot^{2} A + \cos^{2} A$ is equal to

A) (cosecA - sinA)2(cosecA + sinA)	B) (cosecA + sinA)(cosecA - sinA)
C) (secA + sinA)(secA - sinA)	D) (secA - sinA)2(secA + sinA)

Answer & Explanation Answer: B) (cosecA + sinA)(cosecA - sinA)

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Q:

P(3,1) and R(-7,5) are vertices of a rhombus PQRS. What is the equation of diagonal QS?

A) 5x - 2y = 16	B) 5x - 2y = -16
C) 5x + 2y = -16	D) 5x + 2y = 16

Answer & Explanation Answer: B) 5x - 2y = -16

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Q:

If A = 400 and B = 600, then A is how much percentage less than B?

A) 50	B) 66.66
C) 33.33	D) 25

Answer & Explanation Answer: C) 33.33

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Filed Under: Percentage
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Q:

The flight fare between two cities is increased in the ratio 11:13. What is the increase (in Rs) in the fare, if the original fare was Rs 12100?

A) 14300	B) 2200
C) 22000	D) 1430

Answer & Explanation Answer: B) 2200

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Filed Under: Ratios and Proportions
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Q:

A number is decreased by 10% and the resulting number is again decreased by 20%. What is the final percentage of decrease?

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

Answer & Explanation Answer: D) 28%

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Q:

If xy = -30 and $x^{2} + y^{2} = 61$ , then find the value of (x + y).

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

Answer & Explanation Answer: C) 1

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Q:

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

A) 8	B) 10
C) 15	D) 20

Answer & Explanation Answer: B) 10

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?

A) 20%	B) 25%
C) 16%	D) 22.5%

Quantitative Aptitude - Arithmetic Ability Questions

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