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A reservoir is in the shape of a frustum...

A reservoir is in the shape of a frustum of a right circular cone. The radii of its circular ends are 4 m and 8 m and its depth is 7 m. How many kilolitre of water (correct up to one decimal place) can it hold? `(pi = 22/7)`

A

821.3

B

815.7

C

792.3

D

775.7

Text Solution

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The correct Answer is:
A
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