Question

the length,breadth , height if a room are 5m ,4m ,3m find the cost of white washing the inner of the room and ceiling at the rate of 50 rupees per square meter ​

Answer 1

Step-by-step explanation:

lateral surface area = 2h(l+b)

2×3[5+4]

6(9)

=54m²

ceiling or top =l×b

5×4= 20m²

ceiling+ walls=54+20

74m²

cost of white washing= 74×50

=3700rs

ans in 3700rs