Shortest among five: J, K, L, M, N have different heights. M is only shorter than J (so M is second-tallest). K is not as tall as N, and N is shorter than L. Who is the shortest?

Introduction / Context:We must locate the minimum height given several partial comparisons, including a strong statement that pins J and M near the top.

Given Data / Assumptions:

• M is only shorter than J ⇒ J is tallest, M is second-tallest.
• K is not as tall as N ⇒ N > K.
• N is shorter than L ⇒ L > N.
• All distinct heights.

Concept / Approach:From “M only shorter than J,” we know J > M and M ≥ everyone else. That means M ≥ L, N, K. Combined with L > N > K, it follows that among {L, N, K}, K is at the bottom. Since both J and M are above that trio, K is the global minimum.

Step-by-Step Ordering:

Verification / Alternative check:Assign sample heights (e.g., J=10, M=9, L=8, N=7, K=6). All statements hold and K is shortest.

Why Other Options Are Wrong:

• J, L, N: Each is above at least one other person.
• M: Second tallest by statement.

Common Pitfalls:Misreading “only shorter than J” and accidentally placing someone above M.

Final Answer:K