Question

The flour of a rectangulae hall has a perineter 110m if the cost of painting the four walls at the rate of rs 10 per m² is rs 13200 find the height of the hall

Answer 1

perimeter of floor = 110m
2(l+b) = 110m
now,
area of four walls = cost /rate
2(l+b)h = 13200/10
110 h = 1320
h = 12 m