The length, breadth and height of the room are in the ratio 3 : 2 : 1. The bread

Question

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 :

Options:

A . decrease by 13.64%

B . decrease by 15%

C . decrease by 18.75%

D . decrease by 30%

Answer: Option D

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