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人気のある Word Problems >

at what rate percent per annum will a some of R640 amount to R774.40 in 2 years,compounded annually

解

a t w ha t r a t e p erce n t p er ann u m w i ll a so m e o f R 640 am o u n t t o R 774.40 in 2 ye a rs, co m p o u n d e d ann u a ll y

解

Rate : 10%

解答ステップ

Translate the problem into an equation:

774.4 = 640 (1 + \frac{r}{1})^{1 \cdot 2}

r

を解く

774.4 = 640 (1 + \frac{r}{1})^{1 \cdot 2} : r = 10%

Rate : 10%

人気の例

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