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.

What is the breadth and height of your study room?

The expenditure of covering the four walls with papers at the rate of 70 paise per sq-metre is ₹ 157.50 . If the height of the room be 5 metres and the ratio of the length and breadth of the room be 4 : 1, then what will be the length and breadth of the room ?

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

If the sum of length, breadth and height of a cuboid be 19 cm and the length of its diagonal be 11 cm, then· what will be the total surface area of the cuboid ?

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