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WARRIOR [948]
3 years ago
11

one pump can empty the pool in 5 days, whereas a second pump can empty the pool in 7 days. how long it will take the two pumps,

working together, to empty the pool?
Mathematics
1 answer:
PtichkaEL [24]3 years ago
7 0
4 days jfjdhsbsiegebehehebeihrhe
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