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 Quantitative Aptitude - Arithmetic Ability Questions

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Q:

Find the sum of interior angles of a decagon?

A) 1620° B) 2520°
C) 1800° D) 1440°
 
Answer & Explanation Answer: D) 1440°

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Q:

Four numbers A, B, C and D are such that their overall average is 16. The average of A and B is 9.5. The average of C and D is

A) 22.5 B) 23
C) 21.5 D) 25.5
 
Answer & Explanation Answer: A) 22.5

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Filed Under: Average
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Q:

Two circles of radii 17 cm and 8 cm are concentric. The length of a chord of greater circle which touches the smaller circle is

A) 15 cm B) 16 cm
C) 30 cm D) 34 cm
 
Answer & Explanation Answer: C) 30 cm

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Q:

Which of the following is in ascending order?

A) 0.65, 0.76, 0.67, 0.86 B) 0.65, 0.86, 0.67, 0.76
C) 0.65, 0.67, 0.76, 0.86 D) 0.67, 0.65, 0.76, 0.86
 
Answer & Explanation Answer: C) 0.65, 0.67, 0.76, 0.86

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Filed Under: Problems on Numbers
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Q:

Determine the value of a/b + b/a when a + b = 8 and ab = 4.

A) 4 B) 8
C) 12 D) 14
 
Answer & Explanation Answer: D) 14

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Filed Under: Simplification
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Q:

A number is greater than 58 times its reciprocal by 3/4. What is the number?

A) -8 B) 12
C) -12 D) 8
 
Answer & Explanation Answer: D) 8

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Filed Under: Numbers
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Q:

If the measure of the interior angle of a regular polygon is 90 deg greater than the measure of its exterior angle, then how many sides does it have ?

 

A) 8 B) 9
C) 10 D) 12
 
Answer & Explanation Answer: A) 8

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Q:

The ratio of angles of a triangle are 1 : 2/3 : 3. Then the smallest angle is

A) 21 4/7° B) 25°
C) 25 5/7° D) 38 4/7°
 
Answer & Explanation Answer: C) 25 5/7°

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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