Three taps A, B and C can fill a tank in 180, 20 and 90 minutes respec – McqOptions

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1.	Three taps A, B and C can fill a tank in 180, 20 and 90 minutes respectively. If all the taps are opened together, then in how many minutes will the tank be filled?
A.	15
B.	25
C.	30
D.	35
Answer» B. 25

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