Quantitative Aptitude - Arithmetic Ability Questions

Q:

The radius of a sphere and right circular cylinder is 'r'. Their volumes are equal. The ratio of the height and radius of the cylinder is:

A) 3:1 B) 2:1
C) 3:2 D) 4:3
 
Answer & Explanation Answer: D) 4:3

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Q:

The point of intersection of all the angle bisector of a triangle is ______ of the triangle.

A) Incenter B) Circumcenter
C) Centroid D) Orthocenter
 
Answer & Explanation Answer: A) Incenter

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Q:

An angle in a semicircle is

A) 45° B) 60°
C) 90° D) 120°
 
Answer & Explanation Answer: C) 90°

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Q:

What is the equation of the line perpendicular to the line 2x + 3y= -6 and having Y-intercept 3?

A) 3x - 2y = 6 B) 3x - 2y = -6
C) 2x - 3y = -6 D) 2x - 3y = 6
 
Answer & Explanation Answer: B) 3x - 2y = -6

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Q:

The volume of a sphere is 179.67 cub.cm. Find its diameter (in cm).

A) 3.5 B) 14
C) 7 D) 10.5
 
Answer & Explanation Answer: C) 7

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Q:

In the circle above, chord AB is extended to meet the tangent DE at D. If AB = 5 cm and DE = 6 cm, find the length of BD.

 

A) 4 cm B) 5 cm
C) 6 cm D) √30 cm
 
Answer & Explanation Answer: A) 4 cm

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Q:

The total surface area of a hemisphere is 166.32 sq cm, find its curved surface area?

A) 221.76 sq cm B) 36.96 sq cm
C) 110.88 sq cm D) 55.44 sq cm
 
Answer & Explanation Answer: C) 110.88 sq cm

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Q:

In a triangle the length of the side opposite the right angle is 6 cm, what is the length of the side opposite to the angle which measures 30°?

A) 3 cm B) 3√3 cm
C) 3/2 cm D) (3/2)√3 cm
 
Answer & Explanation Answer: A) 3 cm

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