miagonz1312 miagonz1312
  • 13-11-2019
  • Mathematics
contestada

A tank can be filled by three pipes separately in 20,30,and 60 minutes respectively. In how many minutes can it be filled by the three pipes acting together

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maanderson0157 maanderson0157
  • 13-11-2019

Answer:

Step-by-step explanation:

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