Question
Four boys, Mark, Will, Luke and Bobby saved some money. Will's savings was 15 of the total savings of Mark, Luke and Bobby. Mark's savings was 25% of the total savings. Luke's savings was 12 of the total savings of Will and Bobby. If Will's savings was $60, how much less was Luke's savings than the total of the other three boys?
4 m

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Four boys, Mark, Will, Luke and Bobby saved some money. Will's savings was 15 of the total savings of Mark, Luke and Bobby. Mark's savings was 25% of the total savings. Luke's savings was 12 of the total savings of Will and Bobby. If Will's savings was $60, how much less was Luke's savings than the total of the other three boys?