math is fun and i love it

Question

william and nolan started out at their houses and are biking towards each other. william started out first, and has already gone 4 kilometers. he bikes at a constant speed of 7 kilometers per hour. nolan just left, and rides at 8 kilometers per hour. when the boys meet halfway between their houses, they will continue to the park together. How far will each boy have ridden? how long will that take?

Answer 1

4+7h=8h

h=4 hours

each went 32 km when they met

8x4=32=4+7x4=4+28