Using the together rate, it is found that it would take the apprentice 6 hours to make the same number of sets of glasses when working alone.
The together rate is the sum of each separate rate.
In this problem, the rates are:
Hence, applying the equation for the together rate:
[tex]\frac{1}{2} = \frac{1}{x} + \frac{1}{3}[/tex]
[tex]\frac{x + 3}{3x} = \frac{1}{2}[/tex]
[tex]2x + 6 = 3x[/tex]
[tex]x = 6[/tex]
It would take the apprentice 6 hours to make the same number of sets of glasses when working alone.
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