6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

ΔXYZ is right angled at Y. If cosX = 3/5, then what is the value of cosecZ ?

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

Answer & Explanation Answer: B) 5/3

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Q:

If k is the largest possible real number such that $p^{4} + q^{4} = (p^{2} + k p q + q^{2}) (p^{2} - k p q + q^{2}),$ then the value of k is

A) 1	B) -2
C) 2	D) 2

Answer & Explanation Answer: D) 2

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Q:

What is the value of (cosecA - cotA) / (secA + tanA)?

A) (secA + tanA)/(cosecA - cotA)	B) √[(secA - tanA)/(cosecA + cotA)]
C) (secA - tanA)/(cosecA + cotA)	D) √[(secA + tanA)/(cosecA - cotA)]

Answer & Explanation Answer: C) (secA - tanA)/(cosecA + cotA)

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Q:

If ${1/√(1 - sin}^{2} A) = x$ , then the value of x is

A) tanA	B) cosecA
C) secA	D) cosA

Answer & Explanation Answer: C) secA

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Q:

Find the value of 'y' if $(\sqrt[4]{y^{8}}) = 225$

A) 10	B) 12
C) 15	D) 18

Answer & Explanation Answer: C) 15

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Q:

If 3a – (3/a) – 3 = 0, then what is the value of $a^{3} - (1 / a^{3}) + 2$ ?

A) 0	B) 2
C) 4	D) 6

Answer & Explanation Answer: D) 6

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Q:

A telephone bill costs Rs.13 for 19 minutes. What is the cost in rupees for 15 minutes 50 seconds?(rounded to one decimal)

A) 10.8	B) 10.7
C) 10.6	D) 10.9

Answer & Explanation Answer: A) 10.8

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Q:

Find the odd word/letters/number pair from the given alternatives.

A) Bigger	B) Faster
C) Greater	D) Taller

Quantitative Aptitude - Arithmetic Ability Questions

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