Answer:
it will take him 8 days (7.98 in you don't round)
Explanation:
90 -240= 150
150/90 = 1.6666....
1.66 * 3 = 4.98
4.98+3 =7.98 (8 if you round)
8 days
90/3 = 30 mi/day
240/30 = 8 days
1.6m questions
2.0m answers