Anonym Anonym
  • 08-04-2014
  • Mathematics
Answered

Pipe A can fill a swimming pool in 12 h.  Working with another Pipe B, it only takes 3h How long would it take Pipe B working alone to fill the pool



Answer :

Аноним Аноним
  • 08-04-2014
My guess is 9 hours, because since pipe a takes 12 hours and with pipe b it takes 9, it's 12-9=3 I think.
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