Answer :

All we have to do is to divide 310 by 65:

310 / 65 = 4,769230769230769

We can round it to 4,75 which is 4 3/4.

So Marcus will make 310 miles approximately in 4 hours and 45 minutes.
the correct answer is 4 because 4*65=260+65=325 so its going over but it cant so the correct answer is 4