In this question are given four statements followed by five conclusions, one of which deﬁnitely does not logically follow (or is not a possibility of occurrence) from the given statements. That conclusion is your answer.
(Note: You have to take the four given statements to be true).
=>Some moments are ﬂashes
=>All moments are seconds.
=>All ﬂashes are instances.
=>No instance is an hour.
l) All hours being seconds is a possibility.
2) No second is a ﬂash.
3) No hour is a ﬂash.
4) At least some moments are instances.
5) At least some seconds are instances.