Question

The perimeter of a floor of a rectangular hall is 60m and its height is 3m.Find the cost of painting its four walls at the rate of Rs 20 per m^2.

Answer 1

1200 is answers total

Answer 2

2(l+b)=60

l+b=30

Area of rectangular hall =2h(l+b)=180

Cost=180*20=3600