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Charis and shermin are given money each. If Charis and shermin spend $60 and $30 each day respectively. Charis will still have $600 when Shermin has spent all her money. If Charis and Shermin spend $30 and $60 each day respectively. Charis will still have $1500 when Shermin has spent all her money. How much money is given to each girl?

  • MATHS -

    If the time periods are a and b days, respectively,

    600+60a = 1500+30b
    30a = 60b

    a=20 b=10
    So

    Charis had 1800
    Shermin had 600

    check:
    1800-20*60 = 600
    1800-10*30 = 1500

    600-20*30 = 0
    600-10*60 = 0

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