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Maths

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Help me pls..

Lili gave 1/4 of her money to Simon. Then Simon gave 1/5 of whatever money he had then to Lili. Later Lili decided to give 1/3 of whatever money she had then to Simon. Finally, Lili had $688 and Simon had $872. How much did Simon have at first?

  • Maths - ,

    S1=1/4 L+So
    L1=1/5 S1+3/4 Lo

    2/3 L1=688
    S1+1/3 L1=872
    so solve these two for S1, L1 then to to the original equations and solve for So and Lo

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