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 door of dimensions 3mxx2m is on the wall of dimension 10 mxx10 mdot Find the cost of painting the wall if rate of painting is Rs 2. 50 \ p e r\ s qdot\ metredot

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 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 length, breadth and height of a room are 7.5 m, 4.5 m and 3.0 m respectively. There is a door of measure 2.0 m xx 1.0 m and also 2 windows each of measure 1.2 m and 0.75 m. Find the cost of white washing its walls and roof at the rate of Rs. 1.20 per square metre.

A cuboid is 8 m long . 12 m broad and 3.5 m high. Find its total surface area.

The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5m by 1 m. Find the cost of painting the walls at Rs. 3.50 per square metre.

The dimensions of a room are 12.5 m by 9m by 7m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5m by 1 m. Find the cost of painting the walls at Rs. 3.50 per square metre.

A cuboid is 8 m long . 12 m broad and 3.5 m high. Find its lateral surface area.

One side of a square field is 179 m. Find the cost of raising a lawn on the field at the rate of Rs 1.50 per square metre.

A room is 4.5 m long 3.8 m broad . Calculate the area of the floor of the room.