Find the cost of carpeting a room 13 m. long and 9 .m. board with a carpet 75 cm. wide at the rate of Rs. 12.40 per metre.
Area of the carpet = Area of the room = (13 x 9) `m^2 ` = 117 `m^2`
Length of the carpet = `(Area/width) = (117 xx 4/3)`m = 156 m.
`:.` Cost of carpeting = Rs. (156 x 12.40) = Rs. 1934.40
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