Water tank is made of iron sheet. Its dimensions are `4m times 3m times 2m` .Find the cost of painting the inside of the tank at the rate of Rs 7 per square metre

The outer diameter of a pipe is 70 cm and it is 21 m long. Find the cost of painting the outer surface of the pipe at the rate of Rs 10 per square metre

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

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

A room is 16m long, 9 m wide and 3m high. If has two doors, each of dimensions (2m xx 1.5 m) and the three windows, each of dimensions (1.6 m xx 75 cm) . Find the cost of distempering the walls of the room from inside at the rate of Rs 50 per square metre.

A rectangular ground is 90 m long and 32 m broad. In the middle of the ground there is a circular tank of radius 14 metres. Find the cost of turfing the remaining portion at the rate of Rs. 50 per square metre.

A pool is 20m long,15m broad and 4m deep FInd the cost of cementing its floor and its wall at the rate of Rs.12 per square metre.

The floor of a rectangular hall has a perimeter of 250m .Its height is 6m. Find the cost of painting its four walls (including doors,etc.) at the rate of Rs.6 per square metre.