"The earth taken out from a pit is evenly spread   over a rectangular field of length
Channel: Doubtnut
Date: 28/06/2020

"The earth taken out from a pit is evenly spread
 
  over a rectangular field of length 90m, width 60m. If the, volume of the
 
  earth dug is `3078\ m^3dot`
 Find the height of the field raised."