Question

The life expectancy of a circulating coin is

Answer 1

Calculate (1/20)(5 years): 5/20 years, or 1/4 year (3 months).

Answer 2

Answer:

1.75 years or 1 year and 9 months.

Step-by-step explanation:

We have been given that the life expectancy of a circulating coin is  35  years. The life expectancy of a circulating dollar bill is only   1/20 as long.

To find the life expectancy of circulating paper money, we need to calculate 1/20 of 35 years.

$\text{Life expectancy of circulating paper money}=35\text{ years}\times \frac{1}{20}$

$\text{Life expectancy of circulating paper money}=1.75\text{ years}$

$0.75\text{ year}=0.75\times\frac{\text{12 months}}{\text{year}}=\text{9 months}$

Therefore, the life expectancy of circulating paper money is 1.75 years or 1 year and 9 months.