Why can't a valid answer be "George bought four or so books at the market?" In English, a few could possibly mean "four or so." "Few" is a vaguely definable quantity in English -- does "quelques" mean something more specific in French, or is this a matter of question/answer construction?
I would translate "quelques" as "some" in this phrase.
Without a definite quoted number in the phrase, personally I would not be inclined to put a number in the translated text.
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