Logic Problem

A test consists of 30 true or false questions. After the test (answering all 30 questions), Victor gets his score: the number of correct answers. Victor is allowed to take the test (the
same questions ) several times. Can Victor work out a strategy that insure him to get a perfect score after the 25th attempt?

have fun /sci/

just say T to the 1st one, and F to the rests, then get a score.
just say F to the 1st one, and F to the rests, then get a score.
now you find the the 1st one T or F.
Do the 2nd to 30th, one by one.
QED