the ratio of the length to breadth of a lawn is 3:5.It costs Rs.3200/- to fence it at rate of Rs.2/- a metre.What would be the cost of developing the lawn at the rate of Rs.10/- per square metre.

Find the cost of fencing a square park of side 250 m at the rate of Rs.20 per metre.

6 bowls cost Rs. 90. What would be the cost of 10 such bowls?

The cost of mowing the grass inside of circular lawn at the rate of Rs 0.50 per m2 is Rs 308. Find the cost of fencing the lawn at the rate of Rs 16 per metre.

The area of field which is circular is 3218 2/7 m^2 . Find the cost of fencing the field at the rate of Rs. 14 per metre

What is the cost of tiling a rectangular plot of length 600 m and breadth 400 m in the rate of Rs. 12 per hundred square metre.

A tent is of the shape of a right circular cylinder upto height of 3 metres and then becomes a right circular cone with maximum height of 13.5 metres above the ground. Calculate the cost of painting the inner side of the tent at the rate of Rs.2 per square metre, if the radius of the base is 14 metres.

Two cross roads, each of width 5 m, run at right angles through the centre of a rectangular park of length 70 m and breadth 45 m and parallel to its sides. Find the area of the roads. Also find the cost of constructing the roads at the rate of Rs.105 per m^2 .