18. A tank is filled completely in 2 hours if both
the taps are open. If only one of the taps is
open at the given time, the smaller tap takes
3 hours more than the larger one to fill the
tank. How much time does each tap take to
nll the tank completely?
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Answer:
Smaller tap take hours. Both fill the tank in 2 hours if they are open together. Thus, larger tap takes 3 hours while the smaller tap takes 3 + 3 = 6 hours.
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