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Two chemical plants are releasing waste into a holding tank. Plant 1 releases waste twice as fast as plant 2. Together they fill the tank in 4 hours. How long would it take the faster plant to fill the tank working alone?

 Mar 13, 2020
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1/x   + 1/(2x)  = 1/ 4

 

solve for x  = 6 hours for the faster 

 Mar 13, 2020

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