Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the value of ( 1/√3 + cot60) ?

A) 3√3/2 B) 7/2√3
C) (4+√3)/2√3 D) 2/√3
 
Answer & Explanation Answer: D) 2/√3

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Q:

ΔABC is right angled at B. If cotA = 7/24, then what is the value of cosecC ?

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

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Q:

The mean of distribution is 11 and the standard deviation is 5. What is the value of the coefficient variation?

A) 45.45% B) 35.35%
C) 25.25% D) 55.55%
 
Answer & Explanation Answer: A) 45.45%

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Q:

The order of rotational symmetry of a rectangle is

A) 1 B) 4
C) 2 D) 0
 
Answer & Explanation Answer: C) 2

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Q:

In ΔDEF measure of angle E is 90 deg. If cotD = 8/15, and DE = 16cm, then what is the length (in cm) of side EF?

 

 

A) 34   B) 15  
C) 30   D) 14
 
Answer & Explanation Answer: C) 30  

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Q:

If X = 423 + 32 then find the value of  ( X + 1X ).

A) 103 + 15212 B) (103 - 52)12
C) -103 - 33212 D) (103+332)12
 
Answer & Explanation Answer: C) -103 - 33212

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Q:

Find the greatest number which on dividing 1580 and 3800 leaves remainders 8 and 1 respectively.

A) 262 B) 131
C) 65.5 D) 393
 
Answer & Explanation Answer: B) 131

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Q:

A certain principal is invested in a scheme of compound interest. The amount obtained after 1 year is Rs 2400 and the amount obtained after 2 years is Rs 2880. What is the rate of interest (in percentage)?

A) 20 B) 15
C) 25 D) 10
 
Answer & Explanation Answer: A) 20

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