Question

The floor of a rectangular hall has a perimeter 150m.if the cost of painting the four wall is 10m^2 is 9000.find its height

Answer 1

let the height of four walls be X
then,
area of four walls = 150 x

according to question,
(150x) x 10 = 9000
1500 x = 9000
x = 6 metres.

So the height of the four walls is 6 metres.