Question

Over a 3/12 year period, 27/12 inches of snow fell in Jackson City. What was the average yearly snowfall in Jackson City?

A) 9 1/4 inches per year



B) 24 inches per year



C) 31 inches per year



D) 7 6/7 inches per year

Answer 1

9 inches per year

Explanation:

We are told that in a 3/12 year period, the amount of snowfall was 27/12. Therefore, we can find the amount of snowfall in one year by using the following proportion:

`(3)/(12):(27)/(12)=(12)/(12):x`

where 12/12 represents one year, and x the amount of snowfall in one year. Solving for x, we find

`x=((27)/(12)\cdot (12)/(12))/((3)/(12))=((27)/(12))/((3)/(12))=(27)/(3)=9`

So, the average yearly snowfall is 9 inches per year.