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