Gordon swims 4 metres for every 1 metre Maria swim. By how far in metres will Gordon beat Maria if the race is 50 metres?
Gordon: 4*t = 50, t = 12.5 s.
Maria: d = 1m/s * 12.5s = 12.5 m.
Difference = 50-12.5 = 37.5 m.
Gordon beats her by 37.5 m.