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受欢迎的 Word Problems >

Peter opened a savings account 8 years ago. The account earns 1% interest, compounded monthly. If the current balance is 500.00, how much did he deposit initially?

解答

P e t er o p e n e d a s a v in g s a cco u n t 8 ye a rs a g o . T h e a cco u n t e a r n s 1% in t eres t, co m p o u n d e d m o n t h l y . I f t h e c u rre n t ba l an ce i s 500.00, h o w m u c h d i d h e d e p os i t ini t ia ll y ?

解答

Principal : 461.57

求解步骤

Translate the problem into an equation:

500 = P (1 + \frac{0.01}{12})^{12 \cdot 8}

求解

P, 500 = P (1 + \frac{0.01}{12})^{12 \cdot 8} : P = 461.57

Principal : 461.57

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