Quantitative Aptitude - Arithmetic Ability Questions

Q:

Coefficient of x2  in (x + 7)(5 - 3x)(3x - 6) is

A) 96 B) -30
C) 42 D) -18
 
Answer & Explanation Answer: B) -30

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Q:

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits. What is the number?

A) 83 B) 64
C) 46 D) 38
 
Answer & Explanation Answer: D) 38

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Filed Under: Problems on Numbers
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Q:

Aparna changes the marked price of an item to 50% above its C.P. What % of discount allowed in approximately to gain 10%?

 

A) 27% B) 25%
C) 35% D) 37%
 
Answer & Explanation Answer: A) 27%

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Q:

PQR is an equilateral triangle. MN is drawn parallel to QR such that M is on PQ and N is on PR. If PN = 6 cm, then the length of MN is

A) 3 cm B) 6 cm
C) 12 cm D) 4.5 cm
 
Answer & Explanation Answer: B) 6 cm

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Filed Under: Volume and Surface Area
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Q:

The maximum number of common tangents that can be drawn to two disjoint circles is

A) 1 B) 2
C) 4 D) Infinity many
 
Answer & Explanation Answer: C) 4

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Q:

If (6 ­- 18x) -­ (x ­- 7) = 8, then the value of x is ______.

A) -5/19 B) -2/13
C) 2/13 D) 5/19
 
Answer & Explanation Answer: D) 5/19

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Q:

On dividing 221a2b2 by 13b2, we get _____.

A) 17a2 B) 17b2
C) 13a2b2 D) 13
 
Answer & Explanation Answer: A) 17a2

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Q:

By what least number should 1200 be multiplied so that it becomes a perfect square?

A) 2 B) 3
C) 4 D) 5
 
Answer & Explanation Answer: B) 3

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Filed Under: Numbers
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