Parking in a student lot costs $3 for the first half hour and $1.25 for each hour therafter. a partial hour is charged the same as a full hour. what is the longest time that a student can park in this lot for $10? My answer is 5 1/2 hours or should it be 5 hours only?

Question

Parking in a student lot costs $3 for the first half hour and $1.25 for each hour therafter. a partial hour is charged the same as a full hour. what is the longest time that a student can park in this lot for $10?  My answer is 5 1/2 hours or should it be 5 hours only?

whpalmer4 · Answer

30 min $3
90 min $4.25
150 min $5.50
210 min $6.75
270 min $8
330 min $9.25
390 min $10.50

so looks to me like you get 330 min = 5.5 hours while keeping it under $10.

anonymous · Answer

So...I am correct?  I do not have to round to hour only?

whpalmer4 · Answer

I don't see anything in your problem statement that says so, do you?