Quantitative Aptitude - Arithmetic Ability Questions

Q:

Find the value of 6732.8 + 673.28 + 67.328 + 6.7328 + 0.67328 ?

A) 74808.1408 B) 7480.78408
C) 74808.2408 D) 7480.81408
 
Answer & Explanation Answer: D) 7480.81408

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Filed Under: Simplification
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Q:

The median of the numbers 4, 2, 2, 6, 3 and 8 is

A) 4.5 B) 3.5
C) 4 D) 3
 
Answer & Explanation Answer: B) 3.5

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Filed Under: Average
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Q:

Average age of 5 students of a school is 14 years. The average age of students and their Mathematics and science teachers is 30 years. If the age of science teacher is 6 years more than the age of Mathematics teacher, then what is the age (in years) of Mathematics teacher?

 

 

A) 67   B) 68  
C) 56   D) 74
 
Answer & Explanation Answer: A) 67  

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Filed Under: Problems on Ages
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Q:

The diagonal of a square is 10 cm. What is the length (in cm) of its side?

A) 5 B) 5√2
C) 10√2 D) 5/√2
 
Answer & Explanation Answer: B) 5√2

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Filed Under: Volume and Surface Area
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Q:

The radius of a hemisphere is 21 cm, what is its volume? (Take π = 22/7)

A) 38808 cubic cms B) 9702 cubic cms
C) 19404 cubic cms D) 29106 cubic cms
 
Answer & Explanation Answer: C) 19404 cubic cms

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Filed Under: Volume and Surface Area
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Q:

In triangle ABC measure of angle B is 90 deg. If sinA = 24/25, and AB = 1.4cm, then what is the length (in cm) of side BC.

A) 4.8 B) 5
C) 3 D) 5.6
 
Answer & Explanation Answer: A) 4.8

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Q:

Find the value of p if 3x + p, x -­ 10 and ­x + 16 are in arithmetic progression.

A) 16 B) 36
C) -16 D) -36
 
Answer & Explanation Answer: D) -36

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Filed Under: Problems on Numbers
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Q:

Mohan starts to calculate sum of all odd natural number less than 83. What result does he get?

A) 1456 B) 1681
C) 1437 D) 1671
 
Answer & Explanation Answer: B) 1681

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Filed Under: Problems on Numbers
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