I still cant figure out the problem with the rider of the scorpion.

Riders of the scorpion must be at least 48inches tall.Jim is 4feet 2 inches tall. Kim is 3 inches shorter than jim. Give their height in inches and tell who may ride.

1 feet = 12 inches

Jim:12(4)+2=50 inches
Kim: 50-3= 47 inches

Jim can ride, but Kim can't.