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fiasKO [112]
3 years ago
10

Two pipes A and B can fill a petrol tanker in 15 and 12 hours respectively. A third pipe C can empty the whole tanker in 6 hours

. If the tanker is full and all the three pipes are opened together, how long would they take to empty it? ​
Mathematics
1 answer:
Irina-Kira [14]3 years ago
7 0

Answer:

30 minutes

Step-by-step explanation:

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