Quantitative Aptitude - Arithmetic Ability Questions

Q:

The length of the diagonal of a square is 12 cm. Find its area (in cm2).

A) 36 B) 72
C) 144 D) 48
 
Answer & Explanation Answer: B) 72

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Q:

First four multiples of 9?

Answer

A multiple of a number is the number multiplied by an integer.


The first four multiples of 9 are given by multiying the first 4 integers with number 9.


That is,


9 x 1 = 9


9 x 2 = 18


9 x 3 = 27


9 x 4 = 36


 


Hence, first four multiples of 9 are 9, 18, 27, 36.

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Q:

What is the length of the side of a regular hexagon, if its area is 54√3 sq cm?

A) 12 cm B) 9 cm
C) 6 cm D) 15 cm
 
Answer & Explanation Answer: C) 6 cm

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Q:

What is the value of 1xp-q+1+1xq-p+1?

A) 0 B) 1
C) x D) cant determine
 
Answer & Explanation Answer: B) 1

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Q:

If x + (1/x) = (√3 + 1)/2, then what is the value of x4 + (1/x4)?

A) (4√3 – 1)/4 B) (4√3 + 1)/2
C) (–4√3 – 1)/4 D) (–4√3 – 1)/2
 
Answer & Explanation Answer: C) (–4√3 – 1)/4

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Q:

If (1/x) + (1/y) + (1/z) = 0 and x + y + z = 9, then what is the value of x3 + y3 + z3  3xyz?

A) 81 B) 361
C) 729 D) 6561
 
Answer & Explanation Answer: C) 729

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Q:

What is the value of cosec -7π/6?

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

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Q:

Consider  the  multiplication  999  ×  abc  =  def132  in  decimal  notation, where  a,  b,  c,  d,  e  and  f  are digits. What are the values of a, b, c, d, e and f respectively?

A) 6, 6, 8, 6, 8, 7 B) 8, 6, 8, 6, 7, 8
C) 6, 8, 8, 7, 8, 6 D) 8, 6, 8, 8, 6, 7
 
Answer & Explanation Answer: D) 8, 6, 8, 8, 6, 7

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