Kilometersssssss

Question

JI'll is 13.5 kilometers away from Joe. Both begin to walk toward each other at the same time. Jill walks at 1.5 kilometers per hour. They meet in 3 hours l. How fast is Joe walking?

Answer 1

If they meet in 3 hours, jill and Joe have been approaching each other at 13.5 Km /3 hours or 4.5 Km/h. If Jill is walking at 1.5 km/h, joe must me travelling at 4.5 - 1.5 or 3 km/h