Question
The ratio of Jack's total points to that of Howard's in the mock test was 7 : 8. In the next mock test, Jack's points increased by 70%. By what percentage must Howard's points be increased if their total points 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 Jack's total points to that of Howard's in the mock test was 7 : 8. In the next mock test, Jack's points increased by 70%. By what percentage must Howard's points be increased if their total points were to be the same? Round off your answer to the nearest whole number.