Description: Sal solves a multiplication comparison word problem with Harry Potter characters. Created by Sal Khan. Ron and Hermione are practicing lifting feathers into the air with magic. Hermione can lift a feather 35 feet into the air, which is 5 times as high as Ron can lift a feather. So they show that Hermione can lift a feather 35 feet, which is 5 times higher than Ron.*Teacher Advisor is 100% free.