Arithmetic

Quantitative Ability

#25

In a school there are 400 students, of whom 70% are boys. What is the number of girls?

A) 120

B) 200

C) 280

D) 2800,

Answer:   A

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#26

A man opens a bookstall with a capital of Rs. 25000. In three months his capital amounts to rupees 27500. What is the increase percent?

A) 1%

B) 10%

C) 20%

D) 7%

Answer:   B

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#27

A man spent 10% of his money. After spending 60% of the remainder he has Rs. 72 left.How much had he in the start?

A) 10

B) 100

C) 200

D) 400

Answer:   C

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#28

A word processing operator typed 44 words per minute. After practice, the operator’s speed increased to 55 words per minutes. By what percent did the operator’s speed increase?

A) 25%

B) 50%

C) 15%

D) 20%

Answer:   A

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#29

 The population of a city increased in two years from 25,000 to 30,000; find the percent increase during the time.

A) 10% 

B) 20%

C) 40%

D) 5%

Answer:   B

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#30

 The annual decrease in the population of a city was 10% and the present number of inhabitants is 1620. What was the population 2 years hence?

A) 20

B) 400

C) 2000

D) 1000

Answer:   C

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