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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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What is the mean of the first five Triangular Numbers?

A) 8	B) 7
C) 6	D) 5

A) 8

B) 7

C) 6

D) 5

Answer & Explanation Answer: B) 7

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The simplification value of $\frac{\sqrt[3]{7}}{\sqrt{5} + \sqrt{2}} - \frac{\sqrt[5]{5}}{\sqrt{2} + \sqrt{7}} + \frac{\sqrt[2]{2}}{\sqrt{7} + \sqrt{5}}$ is

A) 0	B) 1
C) 5	D) 6

A) 0

B) 1

C) 5

D) 6

Answer & Explanation Answer: A) 0

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If Tan θ = 7/24, then what is the value of Cosec θ?

A) 25/24	B) 25/7
C) 24/7	D) 24/25

A) 25/24

B) 25/7

C) 24/7

D) 24/25

Answer & Explanation Answer: B) 25/7

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

A) (cotA + cosecA)2	B) (cotA - cosecA)2
C) cotA - cosecA	D) cotA + cosecA

A) (cotA + cosecA)2

B) (cotA - cosecA)2

C) cotA - cosecA

D) cotA + cosecA

Answer & Explanation Answer: B) (cotA - cosecA)2

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The value of $8 (\sin^{6} θ + \cos^{6} θ) - 12 (\sin^{4} θ + \cos^{4} θ)$ is equal to

A) 20	B) -20
C) 4	D) -4

A) 20

B) -20

C) 4

D) -4

Answer & Explanation Answer: D) -4

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

A) Arithmetic	B) Mathematics
C) Geometry	D) Algebra

A) Arithmetic

B) Mathematics

C) Geometry

D) Algebra

Answer & Explanation Answer: B) Mathematics

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

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

A) 18bx2az2

B) 18bx2a2z

C) 36ba2z

D) 36bxaz

Answer & Explanation Answer: A) 18bx2az2

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The value of x for which the expressions 15 7x and 15x + 7 become equal is _____.

A) -4/11	B) 11/4
C) -11/4	D) 4/11

A) -4/11

B) 11/4

C) -11/4

D) 4/11

Answer & Explanation Answer: D) 4/11

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