? 發問於 科學及數學數學 · 1 十年 前

maths

1.Mr Ko earns $12000 per month.The rateable value of his flat is equal to 70% of his annual income. If the percentage of rateable value is 5%,how much should Mr Ko pay for the quarterly rates of his flat?

2.Find, correct to the nearest dollar, the compound interest on $15000 at 6% p.a. for 2 years , compounded monthly.

THX...thx..^^

1 個解答

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  • 1 十年 前
    最佳解答

    1.Mr Ko earns $12000 per month.The rateable value of his flat is equal to 70% of his annual income. If the percentage of rateable value is 5%,how much should Mr Ko pay for the quarterly rates of his flat?

    The rateable value of Mr. Ko’s flat

    = 12 000 X 12 X 70%

    = $ 100 800

    So, the value that Mr. Ko should pay for the quarterly rates

    = 100 800 X (3 X 5%)

    = $15 120

    2.Find, correct to the nearest dollar, the compound interest on $15000 at 6% p.a. for 2 years , compounded monthly.

    As there are 24 months in 2 years,

    Compounded interest

    = 15 000(1 + 6% / 12)24 – 15 000

    = 15 000(1.005)24 – 15 000

    = 15 000(1.00524 - 1)

    = $1907 (cor. to the nearest dollar)

    資料來源: Myself~~~
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