A hall 36 m long and 24 m broad allowing `80\ m^2` for doors and windows, the cost of papering the walls at Rs 8.40 per `m^2` is Rs 9408. Find the height of the hall.

The floor of a rectangular hall has a perimeter 250 m\ dot If the cost of painting the four walls at the rate of 10\ p e r\ m^2 is R s .15000. Find the height of the hall.

Find the cost of painting at the rate of Rs. 5.60 per m^(2) on the hemispherical dome of diameter 10 m.

A room is 7 metres long and 5 metres broad. It has one door measuring 2m by 1.5m and two windows, each measuring 1.5m by 1m. The cost of painting the walls at Rs. 12.50 per squre metre is Rs. 825. Find the height of the room.

The floor of a rectangular hall has a perimeter 250 m. If the cost of painting the four walls at the rate of R s\ 10\ p e r\ m^2 is Rs 15000, find the height of the hall.[Hint : Area of the four walls = Lateral surface area.]

The cost of papering the walls of a room 12 m long at the rate of Rs. 13.50 per square metre is Rs. 3402 and the cost of matting the floor at Rs. 9.50 per square metre is Rs. 1026. Find the height of the room.

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 floor of a rectangular hall has a perimeter 250 m . If the cost of painting the four walls at the rate of rupes 10 per m^(2) is rupes 15,000 , find the height of the hall.

The cost of levelling and turfing a square lawn at Rs 2.50 per m^2 is Rs 13322.50. Find the cost of fencing it at Rs 5 per metre.

A room 5 m long 4.5 m wide and 3.6m high has one door 1.5 m by 2.4m and two windows each 1m by 0.75m . Find: (i) the area of its walls ,excluding door and windows. (ii) the cost of distempering its walls at the rate of rupees 4.50 per m ^(2) (iii) The cost of painting its roof at the rate of rupees 9 per m ^(2)

The cost of preparing the walls of room 12m long at the rate of Rs. 1.35 per square metre is RS. 340.20 and the cost of matting the floor at 85 paise per square metre is Rs. 91.80. Find the height of the room.