Question
Four boys, Dylan, Riordan, Simon and Peter saved some money. Riordan's savings was 611 of the total savings of Dylan, Simon and Peter. Dylan's savings was 25% of the total savings. Simon's savings was 12 of the total savings of Riordan and Peter. If Riordan's savings was $960, how much less was Simon's savings than the total of the other three boys?
4 m

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Four boys, Dylan, Riordan, Simon and Peter saved some money. Riordan's savings was 611 of the total savings of Dylan, Simon and Peter. Dylan's savings was 25% of the total savings. Simon's savings was 12 of the total savings of Riordan and Peter. If Riordan's savings was $960, how much less was Simon's savings than the total of the other three boys?