Answer:
3:4, 15:20, 60:80
Explanation:
If a train is traveling 8 miles every 6 minutes then you find the ratio 6:8 to find the first answer you divide both numbers by two. To find the second number you multiply the 3:4 by five, and to find the third number you multiply the 3:4 by 20.
3:4
15:20
60:80