jembe 發問於 商業及金融投資 · 1 十年前

我想計算(本利和)數學題?

我現時有$2,000,年利率為12%,每年年底有複利一次,

我要幾多年才得到本利和$8000呢?請列公式,謝謝!(急!!)

1 個解答

評分
  • ?
    Lv 6
    1 十年前
    最愛解答

    Solution : compound Interest Calculation

    A = P ( 1 + i ) * n

    where i = rate per period , A = compound amount ,

    P = principal, and n = total number of periods

    8000 = 2000 ( 1 + 12% ) * n

    8000 / 2000 = 1.12 *n

    4 = 1.12 *n

    log 4 = n x log 1.12

    Hence n = log 4 / log 1.12 = 12.24 years (Ans. )

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