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math

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the sale of flower by alin,izzati and damia are in the ratio 3:9:7.the difference between the sales by alin and dania is rm 36.how much did izzati get from her sales?

  • math -

    let their sales be 3x, 9x, and 7x

    7x - 3x = 36
    4x = 36
    x = 9

    sales:
    alin = 27
    izzati = 81
    damia = 63

    check:
    difference between alin and damia
    = 63-27
    = 36

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