A class room is `7\ m\ long,\ 6. 5\ m\ w i d e\ a n d\ 4\ m\ h igh` . It has one door `3m\ x\ 1. 4 m\ ` and three windows, each measuring `2m\ x\ 1\ mdot` The interior wall are to be colour washed. The contractor charge `R s .5.25\ p e r\ s qdotmdot\ ` Find the cost of colour washing.

A room is 9 m long, 8 m broad and 6.5 m high. It has one door of dimensions 2mxx1. 5 m and three windows each of dimensions 1. 5 mxx1mdot Find the cost of white washing the walls at Rs 3.80 per square metre.

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 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.

The internal length, breadth and height of a rectangular room are 6 m 5.2 m and 4.5 m respectively . It has two doors each of 1.2 m by 2m and three windows each of 1 m by 80 cm. Find the total internal area of the room to be whitewashed. Also find the cost of whitewashing the room (excluding the doors and windows ) at the rate of rupes 6 per m^(2)

How many 3\ m e t r e\ c u b e s can be cut from a cuboid measuring 18 m\ x\ 12 m\ x\ 9m ?

How many 3\ m e t r e\ c u b e s can be cut from a cuboid measuring 18 m\ x\ 12 m\ x\ 9m ?

The length, breadth and height of a room are 5 m, 4 m and 3 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of R s\ 7. 50\ p e r\ m^2dot

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)

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 length, breadth and height of a room are 9 m, 7 m and 4 m respectively. There are two doors measuring 2m xx 1.5 m and four windows measuring 1.5m xx 1m . Find the area doors remaining walls.