Question
The ratio of Caden's total marks to that of Mark's in the exam was 7 : 8. In the next exam, Caden's marks increased by 70%. By what percentage must Mark's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.
3 m

Click button first when a symbol is required. X

The ratio of Caden's total marks to that of Mark's in the exam was 7 : 8. In the next exam, Caden's marks increased by 70%. By what percentage must Mark's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.