Question
The average number of marbles Xavier and Wesley had was 103. The average number of marbles Xavier and Howard was 65.5. Given that the ratio of the number of marbles Wesley had to the number of marbles Howard had was 7 : 2, find the number of marbles Xavier had.
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The average number of marbles Xavier and Wesley had was 103. The average number of marbles Xavier and Howard was 65.5. Given that the ratio of the number of marbles Wesley had to the number of marbles Howard had was 7 : 2, find the number of marbles Xavier had.