question for answer 3 vs. question to answer 3

Hi,

Is there a difference between ‘here is the question to answer 3’ and ‘here is the question for answer 3’? I used to think that the right preposition in this context is ‘to’ until I received an email from an American who wrote ‘question for answer 3’.

Which phrase do you prefer?
Thanks,
Torsten[YSaerTTEW443543]

TOEFL listening lectures: Which of the following is true of biological indicators?[YSaerTTEW443543]

Hi Torsten,

Both sound all right to me but there is a small difference as ‘in solution to the problem’ meaning the answer but ‘solution for the problem’ suggests to me that this is the appropriate solution for that particular problem x, hinting that it wouldn’t be right for problem y.

Alan