A solid brass sphere of radius 2.1 dm is converted into a right circular cylindr

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Home ‣ Aptitude ‣ Volume and Surface Area See What Others Are Saying!

Question
A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is
Options
A. 3:1
B. 1:3
C. 7:3
D. 3:7

Correct Answer

7:3

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More questions

1. In the following question, select the odd word pair from the given alternatives.
Options
A. Sad : Hopeful
B. Happy : Ecstatic
C. High : Giant
D. Trail : Pathway

Discuss

Correct Answer: Sad : Hopeful

2. Select the related letters from the given alternatives. XVT : RPN :: LJH : ?
Options
A. FDB
B. ECA
C. KIG
D. QOM

Discuss

Correct Answer: FDB

3. Food : Stomach : : Fuel : ?
Options
A. truck
B. Plane
C. Engine
D. Automobile

Discuss

Correct Answer: Engine

Explanation:

Food is processed by the stomach to provide energy for the functioning of the body.
Similarly, fuel is processed by the engine to provide energy for the functioning of automobile.

4. In the following question, select the related word from the given alternatives. Sheep : Lamb : : Cow : ?
Options
A. Kitten
B. Cub
C. Calf
D. Caterpillar

Discuss

Correct Answer: Calf