Question
The average number of cards Nick and Fred had was 127. The average number of cards Nick and Luis was 67.5. Given that the ratio of the number of cards Fred had to the number of cards Luis had was 9 : 2, find the number of cards Nick had.
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The average number of cards Nick and Fred had was 127. The average number of cards Nick and Luis was 67.5. Given that the ratio of the number of cards Fred had to the number of cards Luis had was 9 : 2, find the number of cards Nick had.