Question

the Length breadth and height of the room is 5m, 3m, 4m respectively then find the expenditure of white wash on four wall at rate of 35m square​

Answer 1

thus lateral surface area of a cuboid=2h(l+b)
=2×4(5+3)
=8(8)
=64 m^2
rate per sq = 35
thus for 64 sq m = 64×35
=2,240