10. A room is 14m50cm long and 6m80cm wide. Find the
cost of carpeting it at the rate of Rs.50 per square metre.
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Answer:
length of the room = 1450 cm
breadth of the room = 680 cm
area of the room = l × b = (1450 × 680) cm² = 9,86,000cm²= 9860m²
cost of carpenting the room = Rs 50 per m² = (50 × 9860 ) = 4,93,000 Rs
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