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The cost of carpeting a room 18 m long with a carpet 75 cm wide at Rs 4.50 per metre is Rs 810. The breadth of the room is

A.	7 m	B.	7.5 m
C.	8 m	D.	8.5 m

Answer and Explanation

Answer:7.5 m

Explanation:
Length of the carpet = (total cost)/(Rate /m) = (8100)/(46) = 180 m
Area of the room = Area of the carpet = (180 * 75/100) = 135 sq m
Hence, Breadth of the room = (area)/(length) = 135/18 = 7.5 m

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