計算所得之利率

利息用半年計還是月計?
答案好不同

2011-01-20 17:45:51 補充：
Assume r be the interest rate and compound interest per month
Total principal and interest after 11 years
A=[(1+r/12)^132-1]/(r/12) x 2000total principal and interest after 15 years
450000=A(1+r/12)^48

use different rate to check which rate is approximate to 4500005.446% per annum.If it is compound interest per half-yearly6.578% per annum

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