Quantitative Aptitude - Arithmetic Ability Questions

Q:

ABCD is a cyclic quadrilateral DBA=50° and ADE=33°, then the measurement of BCD is

A) 83° B) 80°
C) 75° D) 60°
 
Answer & Explanation Answer: A) 83°

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Q:

Which of the following is correct?

A) (6x + y)(x - 6y) = 6x^2+ 35xy - 6y^2 B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2
C) (6x + y)(x - 6y) = 6x^2- 37xy - 6y^2 D) (6x + y)(x - 6y) = 6x^2+ 37xy - 6y^2
 
Answer & Explanation Answer: B) (6x + y)(x - 6y) = 6x^2- 35xy - 6y^2

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Q:

If cos2x + cos4x = 1, then tan2x + tan4x =

A) 0 B) 1
C) 2tanx D) tanx
 
Answer & Explanation Answer: B) 1

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Q:

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

A) 65 B) 74
C) 83 D) 92
 
Answer & Explanation Answer: C) 83

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Q:

If 3a+4b3c+4d = 3a-4b3c-4d, then 

A) ab = cd B) ad = bc
C) ac = bd D) a = b = c ≠ d
 
Answer & Explanation Answer: B) ad = bc

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Q:

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

A) -cos y B) -sin y
C) cos x D) tan y
 
Answer & Explanation Answer: A) -cos y

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Q:

3cosA is equal to

A) 4cos3A + 3cosA B) 4cos3A - 3cosA
C) 3cos3A + 3cosA D) 3cos3A - 3cosA
 
Answer & Explanation Answer: B) 4cos3A - 3cosA

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Q:

If 2(5x - ­4) -­ 2 < 2x ­- 1 < 4x - ­2; then the value of x is

A) 1 B) 0
C) -1 D) 2
 
Answer & Explanation Answer: A) 1

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