Answer:
It takes 10 years.
Explanation:
For solving this problem, you can use a simple rule of three:
5 state quarters released takes ---- 1 year
50 state quarters released takes ---- x years
Our incognit is "x"
Then you write the equation as:
x = 50 state * 1 year / 5 state
x = 10 years
So it takes 10 years for all 50 state quarters to be released.
Hope it helps!