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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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If $\frac{1}{p} + \frac{1}{q} = \frac{1}{p + q}$ , then the value of $p^{3} - q^{3}$

A) p-q	B) pq
C) 1	D) 0

A) p-q

B) pq

C) 1

D) 0

Answer & Explanation Answer: D) 0

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Exam Prep: Bank Exams

0 845

If x = 93 , y = 93 , z = 94 then the value of $x^{2} - y^{2} + 10 xz + 10 yz$ is

A) 104784	B) 147840
C) 174840	D) 184740

A) 104784

B) 147840

C) 174840

D) 184740

Answer & Explanation Answer: C) 174840

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0 742

If sec (4x - 50°) = cosec(50° - x), Then the value of x is

A) 45°	B) 90°
C) 30°	D) 60°

A) 45°

B) 90°

C) 30°

D) 60°

Answer & Explanation Answer: C) 30°

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0 719

Value of (cos 53° - sin 37°) is

A) 2 sin 37 ̊	B) 2 cos 53 ̊
C) 0	D) 1

A) 2 sin 37 ̊

B) 2 cos 53 ̊

C) 0

D) 1

Answer & Explanation Answer: C) 0

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0 941

If $4 x + \frac{1}{x} = 5, (x \neq 0),$ then the value of $\frac{5 x}{4 x^{2} + 10 x + 1}$ is

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

A) 1/2

B) 1/3

C) 2/3

D) 3

Answer & Explanation Answer: B) 1/3

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0 811

If $C + \frac{1}{C} = \sqrt{3}$ , then what is the value of $C^{3} + \frac{1}{C^{3}} = ?$

A) 0	B) 3√3
C) 1/√3	D) 6√3

A) 0

B) 3√3

C) 1/√3

D) 6√3

Answer & Explanation Answer: A) 0

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0 718

If x = 222, y = 223, z = 225 then the value of $x^{3} + y^{3} + z^{3} - 3 xyz$ is

A) 4590	B) 4690
C) 4950	D) 4960

A) 4590

B) 4690

C) 4950

D) 4960

Answer & Explanation Answer: B) 4690

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0 1030

If $x = 3^{\frac{1}{3}} - 3^{\frac{- 1}{3}}$ , then $3 x^{2} + 9 x$ is equal to

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

A) 5

B) 6

C) 7

D) 8

Answer & Explanation Answer: D) 8

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0 665

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