the area of a courtyard is 3750 m2. find the cost of covering it with gravel to a height of 1 cm if the gravel costs 6.40 per cubic metre.
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Vol of gravel laid = area * height
= 37500000 * 1 cm3
= 37.5m3
Cost of laying 37.5m3 gravel = 37.5 * 6.40
=Rs240
= 37500000 * 1 cm3
= 37.5m3
Cost of laying 37.5m3 gravel = 37.5 * 6.40
=Rs240
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