Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of (1/√2) Cot 45° + (1/√3) Cosec 60°?

A) (√6 + 1)/√3 B) √3
C) (1 + 3√2)/√3 D) (3 + 2√2)/3√2
 
Answer & Explanation Answer: D) (3 + 2√2)/3√2

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Q:

Starting with 8000 workers, the company increases the number of workers by 5%, 10% and 20% at the end of first, second and third year respectively. The number of workers in the fourth yearwas

A) 10188 B) 11088
C) 11008 D) 11808
 
Answer & Explanation Answer: B) 11088

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Q:

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

 

A) 8 B) 10
C) 15 D) 20
 
Answer & Explanation Answer: B) 10

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Q:

What is the value of tan­ -240°?

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

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Q:

If Sec θ = 25/24 , then what is the value of Sin θ?

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

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Q:

For x = 462+3, what is the value of x+22x-22+x+23x-23

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

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Q:

If a - b = 1 and ab = 6, then what is the value of a3- b3?

A) 21 B) 23
C) 19 D) 25
 
Answer & Explanation Answer: C) 19

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Q:

The ratio of number of boys and girls in a school of 720 students is 7 : 5 . How many more girls should be admitted to make the ratio 1 : 1 ?

A) 90 B) 120
C) 220 D) 240
 
Answer & Explanation Answer: B) 120

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Filed Under: Ratios and Proportions
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