6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Find the sum of interior angles of a dodecagon?

A) 1620°	B) 1800°
C) 1440°	D) 1260°

Answer & Explanation Answer: B) 1800°

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Q:

What is the value of $(2 - 2 z + z^{2}) (2 + 2 z - z^{2}), when z + \frac{2}{z} = 2 ?$

A) 0	B) 2
C) 4	D) 8

Answer & Explanation Answer: A) 0

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Q:

Which of the following is not a quadratic equation?

A) 2x(x + 4) -11 = x(x - 3) + 6	B) 4x(x + 4) -11 = 5x(x - 3) + 5
C) x(x + 2) -15 = x(x - 5) + 11	D) 2x2 + 8x - 11 = 0

Answer & Explanation Answer: C) x(x + 2) -15 = x(x - 5) + 11

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Q:

Determine the value of ‘r’ for which the equation 13x + 5 = rx + 18 has no solution.

A) 0	B) 5
C) 13	D) 18

Answer & Explanation Answer: C) 13

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Q:

The radii of two concentric circles are 68 cm and 22 cm. The area of the closed figure bounded by the boundaries of the circles is

A) 4140π sq.cm.	B) 4110π sq.cm.
C) 4080π sq.cm.	D) 4050π sq.cm.

Answer & Explanation Answer: A) 4140π sq.cm.

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Filed Under: Area
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Q:

The selling price of an item inclusive of a 16% profit was Rs. 435. What would be the percentage loss if the item was sold for Rs. 330?

A) 13	B) 12
C) 12.5	D) 12.25

Answer & Explanation Answer: B) 12

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Filed Under: Profit and Loss
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Q:

Point P (8 , 5) is the midpoint of segment AB. Co-ordinates of A are (5, y) and B are (x, -3). What is the value of x?

A) -11	B) 11
C) 7	D) -7

Answer & Explanation Answer: B) 11

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Filed Under: Volume and Surface Area
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Q:

A and B can do a piece of work in 18 days, B and C in 24 days, A and C in 36 days. Working together they can do the work in

A) 12 days	B) 13 days
C) 16 days	D) 26 days

Quantitative Aptitude - Arithmetic Ability Questions

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