Parking in a student lot costs $3 for the first half hour and $1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time that a student can park in this lost for $10?

Question

mathstudent55 · Answer

Pay          Time    Total pay      Total time
$3.00      0.5 hr      $3.00            0.5 hr
$1.75         1 hr      $4.75            1.5 hr
$1.75         1 hr      $6.50            2.5 hr
$1.75         1 hr      $8.25            3.5 hr
$1.75         1 hr    $10.00            4.5 hr