Question 515211
You state:  "A crew consists of one apprentice."
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If a crew consists of one apprentice, then the apprentice earned all the money.
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To solve the problem you need to know how many people are involved.
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For example, if there were 1 journeyman and 1 master and 1 apprentice on the crew, then it could be solved.  But suppose the crew was 5 journeymen, 15 masters, and 1 apprentice.  The money each earns would be vastly different.
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So, there is no solution to the problem as stated.