1. From Alcuin's problems. How many jumps will it take for the hound to catch up with the hare if initially they are separated by a distance of 150 feet, the hare moves away from the dog by 7 feet with each jump, and the dog runs faster than the hare and gets 9 feet closer with each jump?
1. For each jump, the greyhound gets 2 feet closer to the hare. Therefore, she will catch up to it in 75 jumps.