SOLUTION: Suppose that Jack scored 57 for his Chemistry test, which equates to 79%. How many marks were actually available in the Chemistry test?

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Question 1011373: Suppose that Jack scored 57 for his Chemistry test, which equates to 79%. How many marks were actually available in the Chemistry test?
Answer by josgarithmetic(39627) About Me  (Show Source):
You can put this solution on YOUR website!
Fifty-seven is 79% of the whole test;
w, the whole test quantity;
57=%280.79%29w
w=57%2F0.79
w=72