A carpet is 30 m 75 cm long and 80 cm wide . Find its cost at Rs 20 per square metre .
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Length=30 m 75 cm=3075cm
Breadth=80 cm
Area= L×B
=3075×80
=246000 cm²
m²=m×m=100cm×100cm=10000cm²
Thus
Area of carpet in m²=246000/10000=24.6m²
Cost of carpet= 24.6 ×20
=Rs.492.0
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