The floor of a rectangular hall is to be covered with a carpet 150 cm. wide. If the length and breadth of the hall are 20m. and 18m. respectively, find the cost of the carpet at the rate of Rs. 10 per metre.

Dimensions of the rectangular floor (20 m x 18 m)

The width of the carpet is 1.5 m

Let the length of the carpet be x.


Area of carpet = Area of floor

So the cost of carpet at the rate of Rs. 10/m is-

= 240 x 10

=Rs. 2400

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