Seven persons, L, M, N, O, P, Q and R goes for vacation in seven different months among January, February, March, April, May, June and July of the same year. How many persons goes before Q?
Statement I: Only two persons goes after L. M goes two months before L. N goes immediately after P. O does not go in the month, which has only 30 days. R goes two months before Q.
Statement II: P goes two months before M. R goes immediately after M. O goes three months after R. L and Q goes one after the other.
From statement I, There will be two cases from statement I. From statement II, From statement I and II, we have So, five persons goes before Q. Hence data in statement I and II together are necessary to answer the question.
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