Quantitative Aptitude - Arithmetic Ability Questions

Q:

The volume of a right circular cone, with a base radius the same as its altitude, and the volume of a hemisphere are equal. The ratio of the radii of the cone to the hemisphere is

A) 2 : 1 B) √2 : 1
C) 23 : 1 D) 33 : 23
 
Answer & Explanation Answer: C) 23 : 1

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Filed Under: Volume and Surface Area
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Q:

The total surface area of a cube is 73.5 sq.cm. Find its side (in cm).

A) 3.5 B) 4.5
C) 7.5 D) 5.5
 
Answer & Explanation Answer: A) 3.5

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Q:

The sum of two fractions is 3/4. One of them is 2/3. What is the other fraction?

A) 1/12 B) 1/1
C) 1/10 D) 1/5
 
Answer & Explanation Answer: A) 1/12

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Filed Under: Problems on Numbers
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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) 27 – 32 B) 31 – 36
C) 33 – 38 D) 23 – 27
 
Answer & Explanation Answer: D) 23 – 27

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Filed Under: Odd Man Out
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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) 4 – 16   B)  9 – 81  
C)  6 – 36   D) 7 – 47
 
Answer & Explanation Answer: D) 7 – 47

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Q:

If Cosecθ + Cotθ = 2, then Cotθ = ?

A) 0 B) 0.5
C) 1 D) 0.75
 
Answer & Explanation Answer: D) 0.75

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Filed Under: Simplification
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Q:

The radius of a wire is decreased to one-third. If volume remains the same, length will increase by

A) 1.5 times B) 3 times
C) 6 times D) 9 times
 
Answer & Explanation Answer: D) 9 times

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Filed Under: Volume and Surface Area
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Q:

Two tangents PA and PB are drawn to a circle of centre O in such a way that angle AOB = 120 deg. Calculate the value of angle APB.

A) 40 deg B) 50 deg
C) 60 deg D) 80 deg
 
Answer & Explanation Answer: C) 60 deg

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Filed Under: Volume and Surface Area
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