Frog and Grasshopper move to the right across a pond, playing a chasing game. In each round, Grasshopper moves 1 lily pad to the right while Frog moves 2. Frog catches Grasshopper when they land on the same pad.
1. Which pads are Frog and Grasshopper on after the first jump?
2. Which pads are they on after the second jump?
3. Similarly, find their positions after the following jumps.
4. After how many jumps does Frog catch Grasshopper, and on which numbered pad?
