Answer:
31/20 or 1.55 miles
Step-by-step explanation:
1/4 + 3/5 + 7/10 = 5/20 + 12/20 + 14/20 = (5 + 12 + 14)/20 = 31/20
= 1.55 miles
30/20 miles
1/4 + 3/5 + 7/10 = 31/20 miles
