A 20 m deep well with diameter 7 m is dug and the earth from digging is evenly spread out to form a platform 22 m by 14 m. Find the height of the platform.
Solution:
Diamater of well
m
Radius of well
m
Height of well
m
Length of platform
m
Breadth of platform
m
Let height of platform
According to given condition we have:
Volume of Well = Volume of Earth Dug out
m
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