Question

Two boys who live 14 miles apart start at noon to walk toward eachother at rates of 3 mph and 4 mph respectively. in how many hours will they meet?

1 hr
2 hr
3 hr

Answer 1

2 hours

Explanation: 3*2= 6 4*2=8 6+8= 14

Answer 2

x/3=(14-x)/4
4x=3(14-x)
4x=42-3x
7x=42
x=6 miles
x/3=6/3=2hours (time till the boys meet)