Quantitative Aptitude - Arithmetic Ability Questions

Q:

ΔABC is right angled at B. If cotA = 8/15, then what is the value of cosC ?

 

A) 15/8   B) 8/17  
C) 17/15   D) 15/17
 
Answer & Explanation Answer: D) 15/17

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Q:

Which of the following statement(s) is/are TRUE?

I. √5 + √5 > √7 + √3
II. √6 + √7 > √8 + √5
III. √3 + √9 > √6 + √6

A) Only I B) Only I and II
C) Only II and III D) Only I and III
 
Answer & Explanation Answer: B) Only I and II

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Q:

What is the square root of (√5 + 2)/(√5 – 2)?

 

A) √5 – √4   B) √5 + 2  
C) 5 + √2   D) 7
 
Answer & Explanation Answer: B) √5 + 2  

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Q:

Product of two co-prime numbers is 117. Their L.C.M  should be

A) 1 B) 117
C) Equal to their H.C.F D) cannot be calculated
 
Answer & Explanation Answer: B) 117

Explanation:

H.C.F of co-prime numbers is 1. So, L.C.M = 117/1 =117

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Filed Under: HCF and LCM

122 45275
Q:

Solve the following.

 

-4 - (-7 - 12 / 4) = ?

A) -2 B) 6
C) 0.75 D) -14
 
Answer & Explanation Answer: B) 6

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Q:

Solve the following

 

23 - [23 - {23 - (23 - 23 + 23)}]

 

A) -1 B) 23
C) 1 D) 0
 
Answer & Explanation Answer: D) 0

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Q:

When 0.232323.... is converted into a fraction , then the result is 

 

A) 1/5 B) 2/9
C) 23/99 D) 23/100
 
Answer & Explanation Answer: C) 23/99

Explanation:

0.232323...=0.23 =2399

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Filed Under: Decimal Fractions

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Q:

If 3=1.732, then what is the value of (3 - 103 + 27) ?

 

A) 1.154   B)  1.577  
C)  1.464   D) 2.358
 
Answer & Explanation Answer: A) 1.154  

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