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N is more intelligent than M. M is not as intelligent as Y. X is more intelligent than Y but not as intelligent as N. Who is the most intelligent of all ?
Y
X
M
N
None of the above
N
Construct a simple inequality chain based on the given constraints and identify the element at the top of the hierarchy.
Construct a simple inequality chain based on the given constraints and identify the element at the top of the hierarchy.
Establish individual relationships
From the statements: (1) N > M. (2) Y > M (since M is not as intelligent as Y). (3) X > Y. (4) N > X (since X is not as intelligent as N).
Combine the inequalities
Combining these, we get: N > X and X > Y. Since Y > M and X > M, we have the sequence: N > X > Y > M.
Determine the highest rank
In the established chain N > X > Y > M, N occupies the position of the most intelligent individual as everyone else is ranked below N.
A: Y is less intelligent than X and N; B: X is less intelligent than N; C: M is the least intelligent of all.
D is correct because based on the comparative sequence N > X > Y > M, N is clearly the most intelligent person.
For ranking problems involving multiple attributes, always write the 'greater than' symbol consistently (e.g., always pointing left-to-right) to quickly see the hierarchy.
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