Question
Four boys, Ivan, Cole, Jeremy and Mark saved some money. Cole's savings was 78 of the total savings of Ivan, Jeremy and Mark. Ivan's savings was 10% of the total savings. Jeremy's savings was 18 of the total savings of Cole and Mark. If Cole's savings was $280, how much less was Jeremy's savings than the total of the other three boys?
4 m

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Four boys, Ivan, Cole, Jeremy and Mark saved some money. Cole's savings was 78 of the total savings of Ivan, Jeremy and Mark. Ivan's savings was 10% of the total savings. Jeremy's savings was 18 of the total savings of Cole and Mark. If Cole's savings was $280, how much less was Jeremy's savings than the total of the other three boys?