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 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%

1 Answer - 5876 Votes

3537

Length = breadth = height =

Area of 4 walls =

New length = new breadth = new height =.

New area of the 4 walls =

Decrease in area =

Decrease % =