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