PLEASE HELP, SUPER CONFUSED

answer is not 24.1875

Suppose that if you didn't go to college, you would be making $10 an hour and working 2000 hours per year. If you go to community college for 2 years that will cost you $3000 per year in fees and books. Then you go to a CSU for 2 years, which costs you $9,000 per year in fees, books, etc. For each of the 4 years you're in school, you work half-time, thus you have $10,000 of missed labor income for each of your 4 years of college education.

Your total costs of college are the direct fees and books plus the lost income of working part time.

I present some information on the different levels of pay for different community college majors. at around 6:30 in the video segment at

http://www.youtube.com/watch?v=fBoO8KBGfdM&list=PLPe7HlZG-WBzfacYDGZVpg_XHKb_diz40&index=5

The yearly benefit of going to college is how much extra money you'll make every year above the $10/hour you'd have made if you hadn't gone to college.

Suppose you're going to have a 40 year working life. The total benefit of college is the extra money per year x 40 years.

If you major in economics, how many dollars of benefits will you get per dollar it cost you to get a college degree?