6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.

A) 10	B) 12
C) 13	D) 15

Answer & Explanation Answer: B) 12

Explanation:

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

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Q:

The sum of a non-zero number and its reciprocal is 2. What is the number?

A) 1	B) 2
C) 0	D) 4

Answer & Explanation Answer: A) 1

Explanation:

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

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Q:

Given that the polynomial $(x^{2} + ax + b)$ leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0	B) 0 and 3
C) 3 and 0	D) 0 and any interger

Answer & Explanation Answer: D) 0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

What is the reflection of the point (6, -3) in the line y = 2?

A) (-2 , -3)	B) (6 , 7)
C) (-6 , 7)	D) (-2 , 3)

Answer & Explanation Answer: B) (6 , 7)

Explanation:

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Filed Under: Numbers
Exam Prep: Bank Exams

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Q:

If x = a cosθ+ b sinθ and y = b cosθ- a sinθ, then x2 + y2 is equal to

A) ab	B) a2+b2
C) a2-b2	D) 1

Answer & Explanation Answer: B) a2+b2

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If cosA/(1 - sinA) = x, then the value of x is

A) secA - tanA	B) cosecA + tanA
C) secA + tanA	D) cosecA - tanA

Answer & Explanation Answer: C) secA + tanA

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?

A) 12	B) 15
C) 18	D) 24

Answer & Explanation Answer: C) 18

Explanation:

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Deepti bought a set of cups for Rs. 175, but then had to sell it later to clear old stocks for Rs. 161. What is the percentage of loss that she had to incur?

A) 16	B) 8
C) 7	D) 14

Quantitative Aptitude - Arithmetic Ability Questions

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