Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of (2 - sin30°) ?

A) 3/2 B) 3/√2
C) 2-√3 D) (2√3-√6)/2√2
 
Answer & Explanation Answer: A) 3/2

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Q:

30% of a number exceeds 25% of the same number by 27. What is the value of the number?

A) 540 B) 270
C) 108 D) 90
 
Answer & Explanation Answer: A) 540

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Q:

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

A) 34 B) 28
C) 25 D) 31
 
Answer & Explanation Answer: D) 31

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Q:

If in a triangle ABC, Sin A = Cos B then the value of Cos C is

A) √3/2 B) 0
C) 1 D) 1/√2
 
Answer & Explanation Answer: B) 0

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Q:

If 1/√(1 -­ sin2A) = x, then the value of x is

A) tanA B) cosecA
C) secA D) cosA
 
Answer & Explanation Answer: C) secA

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Q:

ΔDEF is right angled at E. If secD = 25/7, then what is the value of cosecF ?

A) 7/25 B) 24/7
C) 25/7 D) 7/24
 
Answer & Explanation Answer: C) 25/7

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Q:

The value of cos (1110°) is

A) √3/2 B) 1/2
C) 1/√2 D) 1
 
Answer & Explanation Answer: B) 1/2

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Q:

If x=aCosθCosΦ, y = aCosθSinΦ and z= aSinθ, then the value of x2+ y2 + z2 is

A) 2a2 B) 0
C) 4a2 D) a2
 
Answer & Explanation Answer: D) a2

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