Question

Find the cost of white washing 4 walls of a room with a dimensions5,4,3m.At the rate of Rs.12 per m^2

Answer 1

area of four walls of tge room = 2(l+b)h (not including tge ceiling and floor)

=2*(5+4)3

=6(9)

=54 m²

: cost of whitewashing the walls = 54*12=648

= Cost whitewashing the four walls is ₹648

Hope it helped you !