Question

A room of dimensions of 8m ×6m × 4m Find the cost of painting the walls of the room if the price of paint is rupees 80 per sq m

Answer 1

Step-by-step explanation:

let l = 8m, b = 6m & h = 4m

area of the walls of the room

= 2 (bh + hl)

= 2h (b + l)

= 2×4(6 + 8) = 8 × 14 = 112 m^2

cost of 1m^2 = Rs 80

cost of painting the walls of the room

= 112 × 80 = Rs8960 Answer