"The walls and ceiling of a room are to be   plastered. The length, breadth and height of the
Channel: Doubtnut
Date: 2020-06-28

"The walls and ceiling of a room are to be
 
  plastered. The length, breadth and height of the room are 4.5m, 3m and 350cm,
 
  respectively. Find the cost of plastering at the rate of Rs. 8 per square
 
  metre."