6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

Simplify $486 b^{3} x^{2} a^{4} z^{3} / 27 a^{3} b^{2} z$

A) 18bx2az2	B) 18bx2a2z
C) 36ba2z	D) 36bxaz

Answer & Explanation Answer: A) 18bx2az2

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Q:

If tan(A/2) = x, then the value of x is

A) √[(1 + cosA)/(1 - cosA)]	B) (1 - cosA)/(1 + cosA)
C) (1 + cosA)/(1 - cosA)	D) √[(1 - cosA)/(1 + cosA)]

Answer & Explanation Answer: D) √[(1 - cosA)/(1 + cosA)]

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Q:

If 7x - 5y = 13 and 2x - y = 5, then (x - y) is

A) 3	B) 4
C) 5	D) 1

Answer & Explanation Answer: D) 1

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Q:

The HCF of two numbers is 12 and their LCM is 72. If one of the two numbers is 24, then the other number is

A) 60	B) 36
C) 72	D) 48

Answer & Explanation Answer: B) 36

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Q:

If the side of a square is increased by 20%, then what will be the percentage increase in its perimeter?

A) 20	B) 40
C) 100	D) 50

Answer & Explanation Answer: A) 20

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Q:

Which of the following equations has the sum of its roots as 11?

A) x2 - 11x + 18 = 0	B) x2 - 7x + 10 = 0
C) x2 + 2x - 26 = 0	D) x2 + 5x - 6 = 0

Answer & Explanation Answer: A) x2 - 11x + 18 = 0

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Q:

What is the slope of the line 2x - 5y = 12?

A) 2/5	B) 5/2
C) -2/5	D) -5/2

Answer & Explanation Answer: A) 2/5

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Q:

ABCD is a parallelogram in which AB = 7 cm, BC = 9 cm and AC = 8 cm. What is the length (in cm) of other diagonal?

A) 14	B) 14√2
C) 7	D) 7√2

Quantitative Aptitude - Arithmetic Ability Questions

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