A field is 200 m long and 150 m broad. There is a plot, 50 m long and 40 m broad, near the field. The plot is dug 7 m deep and the earth taken out is spread evenly on the field. By how many metres is the level of the field raised? Give the answer to the second place of decimal.

Question

Philoid · Accepted Answer

Given,

Length of field = 200 m

Breadth of field = 150 m

Dimension of plot = 50m×40m

Depth up to which plot is dug = 7 m

Volume of earth dug out = 50×40×7 = 14000 m³

Let level of earth rises in field = h meter

Hence,

= 200×150×h = 14000

= h =