Answer: John goes 1 mile further than Amy
Step-by-step explanation:
Figure out how far each person can go in an hour
Amy can go 1/3 of a mile in 1/15 of an hour- Multiple by 15 to see how far she can go in 1 hour
so in 1 hour Amy can go 5 miles
John goes 1/5 of a mile in 1/30 of an hour- so multiple by 30 to see how far he goes in 1 hour

John goes 6 miles in an hour
So John goes 1 mile further than Amy (6-5)=1