Question
The ratio of Luis's total marks to that of Justin's in the exam was 5 : 6. In the next exam, Luis's marks increased by 90%. By what percentage must Justin'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 Luis's total marks to that of Justin's in the exam was 5 : 6. In the next exam, Luis's marks increased by 90%. By what percentage must Justin's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.