
A privacy-conscious worked example with the original question, step-by-step reasoning, common traps, and similar practice.
Guided solution
To solve this problem, we need to calculate the positions of both the dog and the rabbit after each jump and find when they are the same.
The problem requires understanding of arithmetic sequences and basic addition, which can be moderately challenging for grade-4 students.
The dog catches up to the rabbit after 3 jumps because their positions become equal at that point.