Question
Jack, Pierre and Sam had a total of 67 buttons. The ratio of Pierre's buttons to Sam's buttons was 6 : 5 at first. Jack and Pierre each gave away 12 of their buttons. Given that the three boys had 46 buttons left, how many buttons did Jack have in the end?
4 m

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Jack, Pierre and Sam had a total of 67 buttons. The ratio of Pierre's buttons to Sam's buttons was 6 : 5 at first. Jack and Pierre each gave away 12 of their buttons. Given that the three boys had 46 buttons left, how many buttons did Jack have in the end?