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 wall of a room is 16 long and 6 m high. There is a long rectangular window in the wall measuring 3 m long and I m high. Find the cost of painting the wall at the rate of Rs 15 per sq. m.

The dimensions of a room are 5mxx4mxx3m . Find the cost of white washing the walls of the room and the ceiling at the rate of Rs 11.5 per m^2 .

A wall is 11 m long and 4 m high. It has a door which is 2 m high and 1.5m wide. Find the cost of painting the wall at the rate of Rs 6 per sq. m.

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) .

The dining hall of a hotel is 75 m . Long 60m broad and 16 m high It has five doors 4m by 3 m each and four windows 3 m by 1.6 m each. Find the cost of: (i) papering its walls at the rate of rupees 12 per m ^(2) (ii) Carpeting its floor at the rate of rupees 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.

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.

A mirror is fitted into four circular windows of radius 28 cm. Find the cost of fitting the mirror at the rate of Rs. 4.25 per m^2

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)