Question Bank - General Aptitude

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If the volume of a cone is 1000 ?/3 and the diameter is 20 mm, then the height is?

A.
10 mm
B.
20 mm
C.
200 ? mm
D.
400 ? mm

Solution:

Explanation:Volume of a cone = \(\frac{1}{3}? {r^2}h\)Given:V = 1000 ?/3, d = 20 mm , r = 10 mm\(1000~\times~\frac{\pi}{3}=\frac{1}{3}~\times~?~\times~ {10^2}~\times~h\)h = 10 mm

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