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