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 Rs. 6.40 per cubic metre.
We know that,
1cm = 0.01m
Therefore,
Volume of the gravel used = Area × Height
= 3750 × 0.01
= 37.5 m3
It is given in the question that cost of the gravel is Rs. 6.40 per cubic meter
Therefore,
Total cost of covering = (37.5 × 6.4)
= Rs. 240