A 20m deep well with diamerre 7m is dug and the earth from digging is evently spread out to form a platform 22m by 14m.Find the height of the platform?Anyone?
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let height of the platform be h
l×b×h=22/7×7/2×7/2×20
22×14×h=22×14×10/4
h=10/4m
=2.5 m Ans
l×b×h=22/7×7/2×7/2×20
22×14×h=22×14×10/4
h=10/4m
=2.5 m Ans
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total volume of the earth dug= 22/7 x 7/2 x 7/2x 20=770m sqr
volume of plateform= earth dug= 770=22 x 14 x h
h=35/14=2.5 meters
volume of plateform= earth dug= 770=22 x 14 x h
h=35/14=2.5 meters
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