The total difference between the two sides is 300 * * 2 = 600.

It takes 600/25=24 minutes.

2.54/6=9 54 is a multiple of 6.

So every time A gets a multiple of 6 (except the first time).

For example, A takes one for the first time.

If B takes four, A will take 1 next time.

B: You take three. A will take two next time.