The ratio of the hours the Teenage Mutant Ninja Turtles spend training, to the hours they spend eating pizza is 8:3. If they spend 10 more hours per day training than eating how many hours do they spend eating pizza?

6 hours

Step-by-step explanation:

The difference between the ratio numbers is 8-3 = 5. That corresponds to the 10-hour difference between training hours and pizza-eating hours. Thus, each ratio unit stands for 2 hours. The 3 ratio units spent eating pizza stand for ...

3*2 hours = 6 hours eating pizza