A wall is 4.5 m long and 3 m high. It has two equal windows, each having form and dimensions as shown in Fig.37. Find the cost of painting the wall (leaving windows) at the rate of Rs 15 per `m^2` .

The central hall of a school is 80m long and 8m high. It has 10 doors each of size 3m xx1. 6 m and 10 windows each of size 1. 5 m xx 1mdot If the cost of white-washing the walls of the hall at the rate of R s .1.20\ p e r\ m^2 is Rs. 2385.60, find the breadth of the hall.

A room is 9 m long, 8 m broad and 6.5 m high. It has one door of dimensions (2 mxx1.5 m) and four windows each of dimensions (1.5 mxx1 m) . Find the cost of whitewashing the walls at Rs. 25 per m^(2) .

A swimming pool is 20m long 15m wide and 3m deep. Find the cost of repairing the floor and wall at the rate of Rs. 25per square metre.

The dimensions of a room are 15m10m3m .It has two doors each of dimension (2m1.5m) and three windows,each of (1.6m0.75m) Find the cost of distempering the walls of the room inside only at the rate of Rs.6 per m^(2)

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 room is 8.5m long,6.5m broad and 3.4m high.It has two doors,each measuring (1.5m by 1m) and two windows,each measuring (2m by 1m). Find the cost of painting its four walls at 160 per m^(2) .

Find the cost of white washing the four walls of a cubical room of side 4 m at the rate of Rs 20/ m^(2)

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

A rectangular shaped swimming pool with dimensions 30 m x 20 m has 5 m wide cemented path along its length and 8 m wide path along its width (as shown in Fig. 9.11). Find the cost of cementing the path at the rate of Rs 200 per m^2