Which is greater 100in or 3y 1ft?

To compare 100 inches and 3 yards 1 foot, first convert everything to inches. Since 1 yard equals 36 inches, 3 yards is 108 inches, and adding 1 foot (12 inches) gives a total of 120 inches. Thus, 3 yards 1 foot is 120 inches, which is greater than 100 inches.