By dosing

A dairy uses a new and an old line to dose yogurts. By dosing yogurts on the old line, the order is fulfilled in 6 hours. If both lines work together, they will fulfill the same order in 2 hours. How many hours will it take to fulfill such an order if the yogurts are dispensed only on the new line?

Correct answer:

x =  3 h

Step-by-step explanation:

1/x+1/6=1/2=21=0.5 x=1/(1/21/6)=3 h



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