A figure skater is warming up on the rink. She does a lap of a 100m rink. She completes the laps in 3 minutes. What was her speed?

A figure skater is warming up on the rink. She does a lap of a 100m rink. She completes the laps in 3 minutes. What was her speed?

Answer
a. 33.3 m/min
b. 300 m/min
c. 66.7 m/min
my answer b. ?????