Question

The length,breadth and height of a room are 5m,4m and 3m respectively. find the cost of white washing the inner of the room and ceiling at the rate of rs 50 per square meter

Answer 1

find the lsaof the room and add it with the area of the ceiling I. e (l*b+2h(l+b) ) and to find the cost multiply it by rupees 50....