5. A water tank has two inlets and one outlet. If the inlets fill the tank in 30 and 45 minutes, respectively and the outlet empties it in 30 minutes, how much time will it take to fill the tank if all the inlets and outlets are opened together?
Answers
Answered by
0
Answer:
75
Step-by-step explanation:
45 minutes + 30 minutes = 75 minutes.
I hope my answer is correct
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Answered by
0
Answer:
Step-by-step explanation:
inlet=20min=1/20 (A let)
outlet=40min=1/40 (B let)
hence, the work done by a&b
=a+b=1/20+(-1/40)=1/40
hence tank will get filled in 40 minutes.
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