Matematika

Pertanyaan

Uang RISKI banding uang Hanny 2:3 uang Hanny banding uang nabiha 4:5 jika jumlah uang merek@ 420,000 berapakah uang mereka masing2?

1 Jawaban

  • R : H = 2 : 3 => 2H = 3R => R = 2H/3
    H ; N = 4 : 5 => 4N = 5H => N = 5H/4
    R + H + N = 420.000
    2H/3 + H + 5H/4 = 420.000
    8H/12 + 12H/12 + 15H/12 = 420.000
    35H/12 = 420.000
    35H = 5.240.000
    H = 144.000
    R = 2H/3
    R = 2.144.000 / 3
    R = 288.000/3
    R = 96.000
    N = 5H/4
    N = 5.144.000/4
    N = 180.000
    Jadi uang Riski Rp.96.000,- uang Hani Rp 144.000,- dan uang Nabiha Rp 180.000,-

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