To calculate the time spent, divide the time spent by the number of flyers:
Sam:
Time spent per flyer = total time / number of flyers = 30 /5 = 6 minutes per flyer
Deshaun = 28 /4 = 7 minutes per flyer
Jim = 56/7 = 8 minutes per flyer
The person who worked the fastest is the one that spent less time per flyer.
6 < 7 < 8
Sam worked the fastest ( 6 min per flyer)