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If A is taller than B, B is taller than C, and C is taller than D, who is the shortest?
A
B
C
D
D
Chain the individual inequalities together from tallest to shortest to immediately see the extremes.
Chain the individual inequalities together from tallest to shortest to immediately see the extremes.
Establish individual relations
From the given statements, we write the inequalities: A > B, B > C, and C > D.
Combine into a single chain
Merging all statements forms the continuous linear order: A > B > C > D.
Identify the target
The question asks for the shortest person, which is the element at the very end of the descending chain, namely D.
A: A is at the top of the chain, making him the tallest, not the shortest. B: B is taller than C and D, so he is intermediate. C: C is taller than D, meaning C is not the shortest individual.
D is correct because combining the height inequalities yields A > B > C > D, placing D at the bottom as the shortest person.
Always unify separate comparative statements into one sequence before answering to prevent errors in multi-person rankings.
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