To determine who buys the most fruit, we need to compare the amounts of fruit bought by each person.
- Newton buys 10 pounds of fruit
- Descartes buys 1 1/4 times more fruit than Newton, which means he buys 10 * 1 1/4 = 12.5 pounds of fruit
- You buy 9/10 as much fruit as Newton, which means you buy 9/10 * 10 = 9 pounds of fruit
So, Descartes buys the most fruit, buying 12.5 pounds. Newton buys the second most, buying 10 pounds. And you buy the least amount of fruit, 9 pounds.