Question
The ratio of Oscar's total marks to that of Paul's in the mock test was 8 : 9. In the next mock test, Oscar's marks increased by 70%. By what percentage must Paul's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.
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The ratio of Oscar's total marks to that of Paul's in the mock test was 8 : 9. In the next mock test, Oscar's marks increased by 70%. By what percentage must Paul's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.