Anna and Becker both participate in a bicycle race. Anna pedals 20 mph and Becker pedals at 18 mph. Anna crosses the finish line 10 minutes before Becker. How long is the race?
+37159 Their differnce in speed is 2 mph
1/6 hr * 18 m/hr = 3 miles to go when Anna finishes
Anna gets ahead 2 miles every hour 3 miles /2m/hr = 1.5 hr for anna to finish 1.5 hr x 20 m/hr = 30 mile bike race
