Question

find the area of four walls of a room having length, breadth, height as 8m, 5m, 3m respectively. find the cost of white washing the walls at the rate of rupees.15 / m square

Answer 1

The answer of the question will be 1800₹

Answer 2

area of 4 walls = 2×height( length + breadth)
= 2×3(8+5)
=6(13)
78 m^2
rate of white washing 1m^2 = Rs 15
rate of white washing 78m^2 = 15 × 78
= Rs 1170