Question

find the cost of tiling a square room whose length is 15 m and the cost of tiling is rs 15 per m

Answer 1

First we will find the area of the square room-
area of a square = side x side
area of the square room = 15 x 15 = 225 metre square.
Now,the cost of tiling one square metre - Rs.15
therefore the cost of tiling 225 metre square =
15 x 225 = Rs.3375

hope it helps. :-)