The delivery person weighs 172 pounds. There are 50 packages, and each package weighs 36 pounds. What does it mean mathematically that the maximum weight for one trip in the elevator is 1,200 pounds?
1200 - 172 =1028 capacity of the elevator for packages.
1028 / 36 =28 packages can be loaded on the first trip.
50 - 28 = 22 packages remain for the 2nd trip.
