Answer :

AL2006

Out of the $190, $150 will be cost to rent it for a week even if you never
drive it anywhere.  That leaves (190-150) = $40 to spend on mileage.

If each mile costs $0.10, how many miles can you buy for $40 ?

How many times does 0.10 go into 40 ?

           40/ 0.10  =  400 miles .