Question

The area of a courtyard is 3750 m. Find the cost of covering it with grave
1 cm if the gravel costs 6,40 per cubic metre,
5. How many persons can be accommodated in a hall of length 16 m, breadth 12.5 m am
height 4.5 m, assuming that 3.6 m of air is required for each person?
an can be
11​

Answer 1

Answer:

its 4.5

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