Answer :
March = 80 miles
January = 4 x 80 miles = 320 miles
January = 2 x (February) miles
Hence, (February) = 320 miles / 2 = 160 miles
January = 4 x 80 miles = 320 miles
January = 2 x (February) miles
Hence, (February) = 320 miles / 2 = 160 miles