Let x be the dayly mileage used.
Primo car charges $32 per day plus $0.10 per mile, then the cost for x miles is:

Ultimo car charges $26 per day and $0.65 per mile, then the total cost for x miles is:

We want to know for how many miles ultimo charges three times as much as primo, then we have the equation:

Solving for x we have:

Therefore for 200 miles ultimo charges three times as much as primo.