If l,b and h are the length, breadth and height of a room then what will be the total area of the four walls?

If I, b and h be the length, breadth and height respectively of a room, then area of its 4 walls = (.....) sq units.

If l,b,h be the length, breadth and height of a cuboid, then its whole surface area =(……….) sq units.

If l,b,h be the length, breadth and height of a cuhoid, then its lateral surface area =(………………)sq units.

The length, breadth and height of the room are in the ratio 3:2:1. The breadth and height of the room are halved and length of the room is doubled. The area of the four walls of the room will (a) decrease by 13.64% (b) decrease by 15% (c) decrease by 18.75% (d) decrease by 30%

The cost of papering the four walls of a room is Rs475. Each one of the length,breadth and height of another room is double that of this room.The cost of papering the walls of this new room is (a) Rs 712.50 (b) Rs 950 (c) Rs 1425 (d) Rs 1900

A room has length 4m, breadth 3m and height 3m. How much paper of width 25cm will be required to cover the four walls of the room

The length, breadth and height of room is 16 metres, 12 metres and 15 metres. What will be the length of the largest rod that can be placed in that room?