Question

A well of diameter 14 m is dug 28 m deep. The earth which is so dug out is spread evenly on a rectangular platform 44 m long and 28 m broad. Find the raised height of the platform.

Answer 1

Step-by-step explanation:

Well,

h=28m

r=7m.

Rectangular platform,

l=44m

b=22m

So,volume of well=volume of rectangular platform

That is, volume of cylinder =volume of cuboid.

22/7×r^2×h=lbh

22/7×7×7×28=44×28×h

22/7×49×28=1232h

4312/1232=h

3.5=h

h=3.5.

Answer 2

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