An agricultural field is in the form of a rectangle of length `20 m` and width `14 mdot` A pit `6mlong,3mw i d ea n d2. 5 md e e p` is dug in a corner of the field and the earth taken out of the pit is spread uniformly over the remaining area of the field. Find the extent to which the level of the field has been raised.

Explanation

Given
Dimensions of rectangular pit `= 20mxx14`m
Volume of pit` = 6xx3xx2.5=45m^3`
Now, volume of earth taken out = volume of earth spread
`=45=[(20xx14) - (63)]h`
`=45 = 262h`
`=h=(45xx10^6)/(262xx10^4)`
`=4500/262`
`=17.18`cm