wha
4
Exactly 16 of them
4
25s for
Two because 50/25 = 2
64.37376 25s go into 1,609.344
Over 25s
100 meters in 25s (100/25) = 4 meters per second and that is the speed
you can do: 1 200s, 6 50s, and 2 25s. Or you can do 1 200, 2 100s, and 6 25s.
Over 25s
1, 5, 25.