Tax and by how much? Find it. 22. Express the area of four walls of a room in terms of perimeter of its floor (P) and the
height (h). The cost of carpeting a squared hall at the rate of Rs 200 per sq. metres is
Rs 64800. If the cost of plastering its walls at Rs 50 per sq. metre is Rs 16200. find the
length and height of the room. By how much percentage is the height of the room less
than its length? Find it.​