Question 1163670
A will do one more lap than B or 300 m more (assuming the circumference is 300 m)
A is gaining 0.6 m per second on B and will catch up the 300 m in 500 seconds, 300/0.6
In 500 seconds, A runs 2500 m and B runs 2200 m
divide each of these by 300 m, and the remainder for both is 100m, and that is how far from the starting point A will catch B.