Which of the following statements is necessarily true?
Correct Answer :
There are at least four shelves between items
Solution :
Based on the logical constraints and the constructed valid arrangements for this CAT 2019 shelf-arrangement puzzle:
We evaluate each option:
1. In all possible valid arrangements, we find that the arrangement structure ensures there are exactly two empty shelves separating the group of biscuits and the group of candies.
Therefore, the statement "There are two empty shelves between the biscuits and the candies" is necessarily true.
Thus, the correct option is 1.
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