Answer :

[tex]1min=60s\to1s=\frac{1}{60}min\\\\25s=25\times\frac{1}{60}min=\frac{5}{12}min\\\\1m/25s=1m/\frac{5}{12}min=\frac{12}{5}\ m/min=2.4\ m/min[/tex]
The Formula for finding speed is

v = s / t

here v = speed, s = distance, t = time
putting values

v = 1 / 25
v = 0.04 m / s