The cost of carpeting a room 15 meters long with a carpet 75 cm wide at 30 paisa per meter is Rs. 36. The breadth of the room is?

6 meters
8 meters
9 meters
12 meters

Correct Answer: 6 meters

Explanation:

Length of carpet = Total Cost / Rate
= 3600 / 30
= 120 m
Area of carpet = (120 x 75) / 100 m²
= 90 m²
∴ Area of the room = 90 m²
Breadth of the room = Area /Length
= 90 / 15 m
= 6m

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