Asked by L
an inlet pipe can fill a large water tank in 3 hours. an outlet pipe can empty the same tank in 5 hours. given an empty tank, at 8pm, activate both pipes. what time on the clock will it be before the tank is completely filled?
Answers
Answered by
MathMate
In any given hour,
fraction of tank filled, x = 1/3-1/5 = 2/15
Time to fill = 1/x = 15/2 = 7.5 hours
fraction of tank filled, x = 1/3-1/5 = 2/15
Time to fill = 1/x = 15/2 = 7.5 hours
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