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)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

0 2303

Q:

What is the measure of an interior angle of a regular decagon?

A) 120°	B) 140°
C) 144°	D) 150°

Answer & Explanation Answer: C) 144°

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 2302

Q:

What is the measure of central angle of the arc whose length is 11 cm and radius of the circle is 14 cm?

A) 45°	B) 60°
C) 75°	D) 90°

Answer & Explanation Answer: A) 45°

Explanation:

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Filed Under: Area
Exam Prep: Bank Exams

0 2302

Q:

Simplify: (213 x 213 + 187 x 187)

A) 80338	B) 80438
C) 60338	D) 60438

Answer & Explanation Answer: A) 80338

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0 2302

Q:

If on a Sale there is 40% discount on the marked price of Rs 1000, but the sale is done at Rs 510 only then what additional discount (in %) did the customer get?

A) 25	B) 15
C) 10	D) 30

Answer & Explanation Answer: B) 15

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Filed Under: Percentage
Exam Prep: Bank Exams

1 2301

Q:

The mean of 21 observations (all different) is 40. If each observation greater than the median is increased by 21, then the mean of observations will become:

A) 50	B) 30
C) 50.5	D) 45

Answer & Explanation Answer: A) 50

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

1 2301

Q:

A card is drawn from a pack of 52 cards. What is the probability that either card is black or a king?

A) 15/52	B) 17/26
C) 13/17	D) 15/26

Answer & Explanation Answer: D) 15/26

Explanation:

Number of cards in a pack of cards = 52

Number of black cards = 26

Number of king cards = 4 (2 Red, 2 Black)

Required, the probability that if a card is drawn either card is black or a king =

$\frac{26}{52} + \frac{4}{52} = \frac{30}{52} = \frac{15}{26}$

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

10 2301

Q:

A man sells an article at a profit of 35%. If he had bought it for 15% less price and sold it for Rs. 32 less, then he would have gained 40%. What is the initial cost price (in Rs) of the article?

A) 250	B) 200
C) 300	D) 400

Quantitative Aptitude - Arithmetic Ability Questions

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