0.5 m/s 1.0 m/s 7.5 m/s 30 m/s
I gave my students this multiple choice question: In a rubber duck race, the winning duck traveled 300 meters in 10 minutes. What was the duck's average speed?

Only one answer is correct among these 4 choices:
- 0.5 m/s
- 1.0 m/s
- 7.5 m/s
- 30 m/s

Could you tell me which one is correct?

0.5 m/s