Question: Javier is selling donuts to raise money for a new game. He wants to raise $96. He buys each dozen donuts for $2.40 and then sells each donut for $1. How many dozen donuts does he need to buy and sell to reach his goal?
Solution:
Every donut costs him $.2 because 2.4 divided by 12 equals .2
So he makes $.8 for every donut he sells because $1 minus $.2 equals .8
He needs to sell 120 donuts because 96 divided by .8 equals 120.
He needs to buy and sell 10 dozen donuts because 120 divided by 12 equals 10
Answer: 10