<em>Answer:</em>
<em>The net speed per 24 hours is 5 - 4 = 1 foot. </em>
<em>1 ft / 24 hrs = 16 ft / x hrs </em>
<em> </em>
<em>16 * 24 hrs = 16 days (384 hrs) </em>
<em />
Answer:
1: 72
2: 30 days
3: 36 cars
4: 14/35
5: 13/25
6: 49/70
there :D