The question 76491: Does this question even have an answer? was, of course, hugely popular in MSE. In that post, it was pointed out the OP had copied the question wrong, and that the option (c.) in the multiple choice question must have been 60%.
Since then, our site has been flooded with the same question, but with option (c.) being 60% (as was originally intended by the creator of the question); see the posts 76656, 76681, 76826, 77408 and 77849 (the last one appeared today). And we have been consistently closing these questions as a duplicate of 76491.
But given that
the first question differs from the purported duplicates in one of the options, and
the correct answer to the question seems to depend crucially on the options,
is it correct to regard these later questions as exact duplicates?
I am posting this question here partly on the behalf of the user @idonno, the OP for the post 77849, who seemed confused about the votes to close his/her question as a duplicate.* Here are my reasons for raising the issue at meta:
I want to bring this to the community's attention, and
I feel that others can give a more convincing explanation for the closure.
**Full disclosure:* I cast the first vote to close, but I was essentially following the precedent set already. In any case, it would be unfair to keep today's question open while closing the earlier ones as duplicates.