following the same assumption of finding the bus riders per route, shouldn't the cost of insurance be:
50 $ / day * 1 day/ 10 hrs * 1 hrs/20 miles =0.25 $/route
instead of the current cost of fuel of:
50/10 translating to 50 $ / day * 1 day/ 10 hrs = 5$/day
making the finale cost be 100.25 $/ route ---> 67 passengers as the finale answer for breakeven