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Last Updated on May 4, 2023
GMAT OFFICIAL GUIDE PS
Solution:
We are given that newspaper A sold for $1 and that newspaper B sold for $1.25.
Next we are are given that that p percent of the newspapers that sold were copies of newspaper A. However, we are not given the total number of copies of both newspapers sold. We can let T = the total copies of both newspapers sold. This means:
(p/100)T = copies of newspaper A sold
This also means that:
(1 – p/100)T = copies of newspaper B sold
We are finally given that r percent of the revenue came from newspaper A. We can translate this into an expression and simplify from there.
Answer: D
