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Q:

The curved surface area and the diameter of a right circular cylinder are 660 sq.cm and 21 cm respectively. Find its height (in cm).

 

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

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Filed Under: Area
Exam Prep: Bank Exams

Q:

Find the curved surface area (in cm2) of a right circular cone of diameter 28 cm and slant height 12 cm.

 

A)  792 B) 728
C)  528 D)  493
 
Answer & Explanation Answer: C)  528

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Q:

A well of diameter 3 m and depth 14 m is dug. The earth, taken out of it, has been evenly spread all around it in the shape of a circular ring of width 4 m to form an embankment. Find the height of embankment?

A) 7/8 m B) 9/8 m
C) 3/8 m D) 1/8 m
 
Answer & Explanation Answer: B) 9/8 m

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Filed Under: Area
Exam Prep: AIEEE , Bank Exams

Q:

Find the volume (in cm3) of a right circular cone of diameter 7 cm and height 7 cm.

 

A) 69.06   B) 16.43  
C) 11.15   D) 89.83
 
Answer & Explanation Answer: D) 89.83

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

Consider the circle shown below having angle AOB as 135 deg and the shaded portion is the x part of the circular region. Calculate the value of x.

 

A) 1/12 B) 1/9
C) 1/6 D) 1/4
 
Answer & Explanation Answer: D) 1/4

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Filed Under: Area
Exam Prep: Bank Exams

Q:

What will be the cost of levelling a circular ground of diameter 28 m, if charges are Rs. 125 per sq.m?

A) Rs. 76000 B) Rs. 76400
C) Rs. 76800 D) Rs. 77000
 
Answer & Explanation Answer: D) Rs. 77000

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Filed Under: Area
Exam Prep: Bank Exams

Q:

Pihu and Aayu are running on a circular track of diameter 28m. Speed of Pihu is 48 m/s and that of Aayu is 40 m/s. They start from the same point at the same time in the same direction. When will they meet again for the first time?

A) 8 sec B) 11 sec
C) 13 sec D) 14 sec
 
Answer & Explanation Answer: B) 11 sec

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Filed Under: Time and Distance
Exam Prep: Bank Exams

Q:

The volume of a right circular cone, whose radius of the base is half of its altitude, and the volume of a hemisphere are equal. The ratio of the radius of the cone to the radius of the hemisphere is

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

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams