This was a while back so I figure you must sorted everything by now.
You actually only need 30 hours on an airplane, since the FARs Part 61 states 40 hours total time for a Private Pilot License.
Of those 30 hours, 20 hours are flown dual with an instructor and 10 hours are solo.
§61.109 Aeronautical experience.
(a) For an airplane single-engine rating. Except as provided in paragraph (k) of this section, a person who applies for a private pilot certificate with an airplane category and single-engine class rating must log at least 40 hours of flight time that includes at least 20 hours of flight training from an authorized instructor and 10 hours of solo flight training in the areas of operation listed in §61.107(b)(1) of this part