direct and inverse proption
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volume of the reservoir = 9m ×4m×3m=108cu.m
1cu.m=1000 litre
108cu.m = 108000litre
rate of filling of water =30 litre / min.
time to fill 108000 litre = (108000÷30 )min. = 3600min.= 60hrs
1cu.m=1000 litre
108cu.m = 108000litre
rate of filling of water =30 litre / min.
time to fill 108000 litre = (108000÷30 )min. = 3600min.= 60hrs
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