Khang and Hector live 28 miles from each other. They decide to ride bikes toward each other and meet somewhere in between. Hectors rate of speed is 40% of khangs. They start at the same time and meet two hours later. Find Hectors rate of speed.

Solution:

Hector: 0.4x

Khangs: x

So

2(0.4x+x)=28

x=10

So Hector is 4 mph and Khangs is 10 mph