The winner of the men's 1500-meter speed skating event at a recent Winter Olympics had a time of 1:27.34. Assuming that the distance was measured accurately to five significant figures, what was the skater's average speed in miles per hour (1 km = 0.6214 mi)?
Question 13 options:

31.785 mi/hr

51.153 mi/hr

61.828 mi/hr

38.420 mi/hr