In the middle of a rectangular field measuring 30m ×20m, a well of 7 m diameter and 10 m depth is dug. The earth so removed is evenly spread over the remaining part of the field. Find the height through which the level of the field is raised.

Question

In the middle of a rectangular field measuring 30m &#xD7;20m, a well of 7 m diameter and 10 m depth is dug. The earth so removed is evenly spread over the remaining part of the field. Find the height through which the level of the field is raised.

Philoid · Accepted Answer

Given,

Diameter of well = 7 m

Radius of well =

Depth of well = 10 m

Volume of well =

volume of well =Area of spread out × height of embankment

=

Height of embankment = 68.6 cm