Which sentence is grammatically wrong?

[chance22]

1. Only one out of six were present at the meeting.
2. Five miles seem like a long walk to me.
Of the above two sentences, which one is not correct? I think maybe "Only one out of six" should be regarded as a singular noun so the predicate verb"was" should be used instead of "were". But some other people argue that the subject of the second sentence should be followed by singular form of verb.
Could you help explain it to me?

 

[MikeNewYork]

I would use the singular in both sentences. In the first sentence, "one" is the subject. It is singular. In the second sentence "five miles" can be viewed as a unit, rather than individual miles.

 

[Matthew Wai]

I take 'five miles' to mean 'a distance of five miles', which refers to a single distance, which is singular.

Not a teacher.

 

[chance22]

It seems my instinct that both sentences are wrong proves to be right. Maybe there's a mistake in the national English test, because we're supposed to choose one sentence that is not right. Thank you!

 

[MikeNewYork]

There are many mistakes in English tests.