
保險算法與利率

請問遇到這樣一個題目
該怎麼計算呢..?
第一個方案總共繳了90萬可以領回120萬
第二個方案繳了90萬 可以領回90萬+活到80歲所以有13*3萬 =129萬
第三個存在銀行的我就不會算了@@
有大大可以幫忙解答嗎
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