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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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If $2 x + \frac{1}{3 x} = 5$ , the value of $\frac{5 x}{6 x^{2} + 20 x + 1}$ is

A) 1/4	B) 1/6
C) 1/5	D) 1/7

A) 1/4

B) 1/6

C) 1/5

D) 1/7

Answer & Explanation Answer: D) 1/7

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0 732

If cos 27° = x, the value of tan 63° is

A) x1-x2	B) x1+x2
C) 1-x2x	D) 1+x2x

A) x1-x2

B) x1+x2

C) 1-x2x

D) 1+x2x

Answer & Explanation Answer: A) x1-x2

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0 603

If a + b = 10 and ab = 21, then the value of ${(a - b)}^{2}$ is

A) 15	B) 16
C) 17	D) 18

A) 15

B) 16

C) 17

D) 18

Answer & Explanation Answer: B) 16

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0 805

If $(x - 4) (x^{2} + 4 x + 16) = x^{3} - P$ , then P is equal to

A) 27	B) 8
C) 64	D) 0

A) 27

B) 8

C) 64

D) 0

Answer & Explanation Answer: C) 64

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0 732

If $\cos^{2} x + \cos^{4} x = 1, then \tan^{2} x + \tan^{4} x =$

A) 0	B) 1
C) 2tanx	D) tanx

A) 0

B) 1

C) 2tanx

D) tanx

Answer & Explanation Answer: B) 1

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0 703

If a + b + c = 0 , then the value of $a^{3} + b^{3} + c^{3}$ is

A) abc	B) 2abc
C) 3abc	D) 0

A) abc

B) 2abc

C) 3abc

D) 0

Answer & Explanation Answer: C) 3abc

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0 724

The value of $(x^{\frac{1}{3}} + x^{\frac{- 1}{3}}) (x^{\frac{2}{3}} - 1 + x^{\frac{- 2}{3}})$

A) x-1+x23	B) x+x-13
C) x13+x-1	D) x+x-1

A) x-1+x23

B) x+x-13

C) x13+x-1

D) x+x-1

Answer & Explanation Answer: C) x13+x-1

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0 738

If $tanθ = \frac{4}{3}$ , then the value of $\frac{3 sinθ + 2 cosθ}{3 sinθ - 2 cosθ}$ ?

A) 1/2	B) 3/2
C) 3	D) -3

A) 1/2

B) 3/2

C) 3

D) -3

Answer & Explanation Answer: C) 3

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0 797

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