Question
The ratio of Rael's total marks to that of Albert's in the mock exam was 6 : 7. In the next mock exam, Rael's marks increased by 70%. By what percentage must Albert'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 Rael's total marks to that of Albert's in the mock exam was 6 : 7. In the next mock exam, Rael's marks increased by 70%. By what percentage must Albert's marks be increased if their total marks were to be the same? Round off your answer to the nearest whole number.