Question
The ratio of Henry's total points to that of David's in the exam was 7 : 8. In the next exam, Henry's points increased by 90%. By what percentage must David'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 Henry's total points to that of David's in the exam was 7 : 8. In the next exam, Henry's points increased by 90%. By what percentage must David's points be increased if their total points were to be the same? Round off your answer to the nearest whole number.