Question
The average number of cards Perry and Fabian had was 113. The average number of cards Perry and Fred was 67.5. Given that the ratio of the number of cards Fabian had to the number of cards Fred had was 9 : 2, find the number of cards Perry had.
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The average number of cards Perry and Fabian had was 113. The average number of cards Perry and Fred was 67.5. Given that the ratio of the number of cards Fabian had to the number of cards Fred had was 9 : 2, find the number of cards Perry had.