Question

The length, breadth and height of a room are 5m,4m and 3m. Find cost of white washing the walls of room and ceiling at the rate of rs 7.50 er

Answer 1

Area of room and cielling = 2(l+b)×h+l×b .
so 2(5+4)3+5×4=74.
cost of white washing 74×7.50=€555.