Answers

2015-10-30T08:45:44+08:00
Rate * Time = Work Pipe Large 1/x*1ohrs =10/x Pipe Small 1/x+4.5*10hrs=10/x+4.5 10/x+10/x+4.5=1 x^2-15.5x-45 x=18 Pl =18 Ps= 18 +4.5=22.5 Pipe Large = 18hrs Pipe Small= 22.5hrs
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2015-10-30T10:36:00+08:00

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It takes 22.5 for smaller pipe to fill the tank alone.

It takes 18 hours for larger pipe to fill the tank alone.

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