Aptitude and Reasoning Questions

Q:

The total surface area of a hemisphere is 41.58 sq cm, find its radius.

A) 4.2 cm B) 0.7 cm
C) 1.05 cm D) 2.1 cm
 
Answer & Explanation Answer: D) 2.1 cm

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Filed Under: Volume and Surface Area
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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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Filed Under: Volume and Surface Area
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Q:

The ratio of total surface area and volume of a sphere is 1 : 7. This sphere is melted to form small spheres of equal size. The radius of each small sphere is 1/6th the radius of the large sphere. What is the sum (in cm2) of curved surface areas of all small spheres?

A) 31276 B) 36194
C) 25182 D) 33264
 
Answer & Explanation Answer: D) 33264

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Q:

A chord of a circle is equal to its radius. A tangent is drawn to the circle at an extremity of the chord. The angle between the tangent and the chord is

A) 30° B) 45°
C) 60° D) 75°
 
Answer & Explanation Answer: A) 30°

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Q:

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Relationship

A) Ship B) Late
C) Reserve D) Last
 
Answer & Explanation Answer: C) Reserve

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Filed Under: Logical Sequence of Words
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Q:

The diagonal of a square is 10√2 cm, find its perimeter?

A) 160 cm B) 80 cm
C) 20 cm D) 40 cm
 
Answer & Explanation Answer: D) 40 cm

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Q:

If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 108 × 12 + 3 – 6 ÷ 4 = ?

A) -10 B) -1
C) -7 D) -5
 
Answer & Explanation Answer: D) -5

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Q:

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Mindboggling

A) Dog B) Going
C) Mid D) Might
 
Answer & Explanation Answer: D) Might

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