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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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If secA = x, then the value of x is

A) √(1 - cot2A)	B) √(1 - tan2A)
C) √(1 + cot2A)	D) √(1 + tan2A)

A) √(1 - cot2A)

B) √(1 - tan2A)

C) √(1 + cot2A)

D) √(1 + tan2A)

Answer & Explanation Answer: D) √(1 + tan2A)

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

A) -3	B) -4
C) 2	D) 3

A) -3

B) -4

C) 2

D) 3

Answer & Explanation Answer: A) -3

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

A) secA - tanA	B) cosecA + tanA
C) secA + tanA	D) cosecA - tanA

A) secA - tanA

B) cosecA + tanA

C) secA + tanA

D) cosecA - tanA

Answer & Explanation Answer: C) secA + tanA

Explanation:

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If $x = \frac{4 \sqrt{ab}}{\sqrt{a} + \sqrt{b}}$ , then what is the value of $\frac{x + 2 \sqrt{a}}{x - 2 \sqrt{a}} + \frac{x + 2 \sqrt{b}}{x - 2 \sqrt{b}}$ ?

A) 0	B) 2
C) 4	D) 1

A) 0

B) 2

C) 4

D) 1

Answer & Explanation Answer: B) 2

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Which of the following equations has real and distinct roots?

A) 3x2 - 6x + 2 = 0	B) 3x2 - 6x + 3 = 0
C) x2 - 8x + 16 = 0	D) 4x2 - 8x + 4 = 0

A) 3x2 - 6x + 2 = 0

B) 3x2 - 6x + 3 = 0

C) x2 - 8x + 16 = 0

D) 4x2 - 8x + 4 = 0

Answer & Explanation Answer: A) 3x2 - 6x + 2 = 0

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ΔABC is right angled at B. If m ∠A = 60°, then what is the value of 1/√3 Cosec C?

A) 2/√3	B) 2/3
C) √2/√3	D) √2/3

A) 2/√3

B) 2/3

C) √2/√3

D) √2/3

Answer & Explanation Answer: A) 2/√3

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In 3 years Rs 3000 amounts to Rs 3993 at x% compound interest, compounded annually. The value of x is

A) 10	B) 8
C) 5	D) 3 1/3

A) 10

B) 8

C) 5

D) 3 1/3

Answer & Explanation Answer: A) 10

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Filed Under: Compound Interest
Exam Prep: Bank Exams

0 961

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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