Aptitude - Volume and Surface Area - Discussion

Discussion Forum : Volume and Surface Area - General Questions (Q.No. 11)
11.
The curved surface area of a cylindrical pillar is 264 m2 and its volume is 924 m3. Find the ratio of its diameter to its height.
3 : 7
7 : 3
6 : 7
7 : 6
Answer: Option
Explanation:

r2h = 924         r = 924 x 2 = 7 m.
2rh 264 264

And, 2rh = 264         h = 264 x 7 x 1 x 1 = 6m.
22 2 7

Required ratio = 2r = 14 = 7 : 3.
h 6

Discussion:
23 comments Page 3 of 3.

Munikrishna said:   1 decade ago
Please explain.

Ruksana said:   1 decade ago
Can anyone explain the answer in detail?

Deepika said:   1 decade ago
Can any one help?


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