The value of a machine depreciates each year by 10 % of it's value at the beginning of that year. It' value when new is Rs 750, find it's value when it is 2 years old.

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Solution:

⇨Given
⇨p=750
⇨r=10%
⇨n=2 months
⇨The value of a machine when it is 2 years old will be

$\large A=p\left ( 1-\frac{r}{100} \right )^{n}$