Answer:
125 mph
Step-by-step explanation:
The river is going 25 mph every 20 minutes
- [tex]20[/tex] [tex]minutes=25[/tex]
- [tex]40[/tex] [tex]minutes=50[/tex]
- [tex]60[/tex] [tex]minutes=75[/tex]
- [tex]80[/tex] [tex]minutes =100[/tex]
- [tex]1[/tex] [tex]hour = 125[/tex]
Therefore we can paddle 125 miles at consistent rate.