The side of a square room is 12m. Find the cost of carpeting the room at the rate of Rs. 5 per sq metre.

One side of a square plot is 250m, find the cost of levelling it at the rate of Rs.2 per square metre.

The perimeter of a square field is 800 m. Find the cost of grassing on it at the rate of Rs 1.75 per metre?

A path of 1 m wide runs around and inside a square garden of side 20 m. Find the cost of levelling the path at the rate of rs. 2.25 per square metre (in Rs.).

One side of a square field is 179m. Find the cost of raising a lawn on the field at the rate of Rs 1.50 per square metre.

The cost of ploughing a square field at Rs 13.50 per square metre is Rs 5400. Find the cost of fencing the field at the rate of Rs 28.50 per metre