desirjeanpierre
desirjeanpierre desirjeanpierre
  • 04-02-2017
  • Mathematics
contestada

two pipelines can fill a small tank in 18 min.One of the Pipelines would require 54 min to fill the Tank.How long would it take the second Pipeline ,Working alone ,to fill the tank.. [6.5]????

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eliassaab123
eliassaab123 eliassaab123
  • 04-02-2017
1/x +1/54=1/9 solve it to get x=27
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