Quantitative Aptitude - Arithmetic Ability Questions

Q:

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

A) 50 B) 55
C) 60 D) 65
 
Answer & Explanation Answer: B) 55

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Q:

The average revenues of 11 consecutive years of a company is Rs 77 lakhs. If the average of first 6 years is Rs 72 lakhs and that of last 6 years is Rs 84 lakhs, What is the revenue for the Sixth year.

A) Rs 91 lakhs B) Rs 87 lakhs
C) Rs 85 lakhs D) Rs 89 lakhs
 
Answer & Explanation Answer: D) Rs 89 lakhs

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Filed Under: Average
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Q:

The sum of ages of 4 children born at intervals of 4 years each is 60. What is the age of the youngest child?

A) 7 B) 9
C) 10 D) 12
 
Answer & Explanation Answer: B) 9

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Q:

A shopkeeper by selling 21 Nike shoes, earns a profit equal to the selling price of 5 Nike shoes. His profit percentage is

A) 31.25 percent B) 23.8 percent
C) 47.6 percent D) 16.35 percent
 
Answer & Explanation Answer: A) 31.25 percent

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Filed Under: Percentage
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Q:

If x2-2x+1=0, then the value of x4+1x4 is

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

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Q:

The diameter of a circle is 28 cm find its area?

A) 616 sq cm B) 308 sq cm
C) 154 sq cm D) 77 sq cm
 
Answer & Explanation Answer: A) 616 sq cm

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Filed Under: Area
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Q:

The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?

A) 56 B) 65
C) 62 D) 69
 
Answer & Explanation Answer: C) 62

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Q:

What is the value of (32 cos6x  48 cos4x + 18 cos2x  1)/[4 sin x cos x sin (60  x) cos (60  x) sin (60 + x) cos (60 + x)]?

A) 4 tan 6x B) 4 cot 6x
C) 8 cot 6x D) 8 tan 6x
 
Answer & Explanation Answer: C) 8 cot 6x

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Filed Under: Simplification
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