The cost of papering the four walls of a room at 70 paise/sq. m is Rs 157.50. The height of the room is 5 m. Find the length and breadth of the room if they are in the ratio 4 : 1. Options: A . &nbsp20 m , 4.5 m B . &nbsp30 m , 4.5 m C . &nbsp18 m , 4.5 m D . &nbsp15 m , 4.5 m

The cost of papering the four walls of a room at 70 paise/sq. m is Rs 157.50.

Question

The cost of papering the four walls of a room at 70 paise/sq. m is Rs 157.50. The height of the room is 5 m. Find the length and breadth of the room if they are in the ratio 4 : 1.

Options:

A . 20 m , 4.5 m

B . 30 m , 4.5 m

C . 18 m , 4.5 m

D . 15 m , 4.5 m

Answer: Option C

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