Question

The floor of arectangular hall has length 80m. And width 40m. Irs heught is6m. Find the the cost of painting the four walls of the room at the rate of Rs.6 per square metere

Answer 1

Area of four walls = 2(length+breadth)*height


Area of four walls = 2(80+40)*6

Area of four walls = `12*120


Area of four walls = 1440 m^2


Now,


Cost of painting four walls =6*1440

Cost of painting four walls =Rs 8640



i hope this will help you



-by ABHAY