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Friday, August 29, 2014
time and work
Pipe A can fill a tank in 3 hours less than pipe B. they together can fill the tank in 6 hours and 40 mins. find the time each tank will take to fill the tank.
Answer:
time tank by B to fill the tank = x
so, 1/x + 1/(x - 3) = 3/20
or, x = 15 hours
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