Quantitative Aptitude - Arithmetic Ability Questions

Q:

The smallest of the fractions among 5/8, 3/4, 13/16, 7/12 is ___.

A) 5/8 B) 3/4
C) 13/16 D) 7/12
 
Answer & Explanation Answer: D) 7/12

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Q:

The sum of numbers from 1 to 100 (inclusive of both) is

A) 5050 B) 5500
C) 5005 D) 5505
 
Answer & Explanation Answer: A) 5050

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Q:

If 2x + 3 = 9 then find the value of 3x + 2

A) 12 B) 16
C) 13 D) 11
 
Answer & Explanation Answer: D) 11

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Filed Under: Simplification
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Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the

 

A) 16 – 32   B) 24 – 48  
C) 36 – 72   D) 32 – 66
 
Answer & Explanation Answer: D) 32 – 66

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Q:

A polygon has 9 sides. What is its interior angle?

A) 140 deg B) 100 deg
C) 120 deg D) 40 deg
 
Answer & Explanation Answer: A) 140 deg

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Q:

The angle of elevation of a ladder leaning against a wall is 60 deg and the foot of the ladder is 4.2 m away from the wall. The length of the ladder is

A) 9.2 m B) 11.4 m
C) 8.5 m D) 13.5 m
 
Answer & Explanation Answer: A) 9.2 m

Explanation:

Let AB be the wall and BC be the ladder. Then, ACB=60°   and AC=4.6 m.  AC/BC = cos 60°  =  1/2     BC = 2×AC =(2×4.6)m = 9.2 m

 

 

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Q:

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given options.

 

A) 14 – 28   B) 16 – 32  
C) 18 – 36   D) 12 – 34
 
Answer & Explanation Answer: D) 12 – 34

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Q:

Which of the following pairs is NOT a pair of twin primes?

A) 71, 73 B) 131, 133
C) 191, 193 D) 11, 13
 
Answer & Explanation Answer: B) 131, 133

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