Discussion
Statements: W*N, K * V, Y @ V, W @ K
Conclusions:
I. Y @ K
II. W $ N
III.W @ Y
IV.W @ V
Answer: B
Correct answer: Only I is true
This set’s code reads \(\$\) as \(\ge\), \(@\) as \(>\), \(\#\) as \(<\), \(\&\) as \(=\) and \(*\) as \(\le\). The statements become \( W \le N \), \( K \le V \), \( Y > V \) and \( W > K \).
I. \( Y > K \): the run \( Y > V \ge K \) points one way and opens strict. True.
II. \( W \ge N \): the first statement says \( W \le N \), which allows equality but does not compel it, so the reverse relation cannot be asserted. Not determined.
III. \( W > Y \): W stands above K and Y stands above V, which is itself above K - so both are above K, on separate branches, and unordered. Not determined.
IV. \( W > V \): the same structure, one link shorter. Not determined.
Only I follows. Conclusion II is the one to watch: reversing a weak inequality is never valid, because \( W \le N \) leaves open that W is strictly smaller.
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