6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The 5th and 9th term of an arithmetic progression are 7 and 13 respectively. What is the 15th term?

A) 22	B) 21
C) 55	D) 59

Answer & Explanation Answer: A) 22

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Q:

What is the average of all natural numbers from 21 to 39?

A) 30	B) 31
C) 29	D) 28

Answer & Explanation Answer: A) 30

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Q:

If sinA = x, then x is equal to

A) √(1 - cos2A)	B) √(1 - sin2A)
C) √(1 + cos2A)	D) √(1 + sin2A)

Answer & Explanation Answer: A) √(1 - cos2A)

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Q:

In the following questions two equations numbered I and II are given. You have to solve boththe equations and give answers

I. 2x ² –21x + 54 = 0

II. y ² –14y + 49 = 0

A) x = y or relation can’t be established between x and y	B) x > y
C) x < y	D) x ≥ y

Answer & Explanation Answer: C) x < y

Explanation:

I. 2x ² –21x + 54 = 0(x -6)(2x -9)x =+6, +9/2

II. y ² –14y + 49 = 0(y-7) (y-7)y = +7, +7y > x

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Q:

What will be the roots of the quadratic equation $x^{2} - 25 x + 156 = 0$ ?

A) 12, 13	B) 25, 1
C) 9, 16	D) 31, 6

Answer & Explanation Answer: A) 12, 13

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Q:

Which of the following is not a quadratic equation?

A) 3x(x + 5) 11 = 2x(x - 2) + 6	B) 4x(x + 3) + 7 = 4x(x - 11) + 9
C) x(x + 2) 15 = x(2x - 5) + 11	D) 4x - 6x + 9 = 0

Answer & Explanation Answer: B) 4x(x + 3) + 7 = 4x(x - 11) + 9

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Q:

Which one among the following does not belong to the group?

A) Maestro	B) Visa
C) Master	D) Credit Card

Answer & Explanation Answer: D) Credit Card

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Q:

What is the angle between centripetal acceleration and tangential acceleration?

A) 90°	B) 45°
C) 0°	D) 180°

Quantitative Aptitude - Arithmetic Ability Questions

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