Data Sufficiency — youngest among four (Madan, Kamal, Sharad, Arvind) Given base info: Madan is older than Kamal; Sharad is younger than Arvind. Statements: I. Sharad is younger than Madan. II. Arvind is younger than Kamal. Choose the correct sufficiency option to identify the youngest person.

Difficulty: Easy

Correct Answer: II alone is sufficient while I alone is not sufficient

Explanation:

Base relations
M > K and A > S.

Using Statement I
S < M. Combined with base (A > S), we still cannot order among A, K, S fully ⇒ insufficient.

Using Statement II
A < K. With base S < A and M > K, we get S < A < K < M. Sharad is youngest is now determined ⇒ sufficient.

Conclusion
II alone is sufficient while I alone is not sufficient.

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