Exams › IBPS PO › Reasoning

15 people in a row facing North. What is M's position with respect to S? I. P=3rd from left. 2 between P and M. N=3rd right of M. S=immediate neighbour of N. II. Q=2nd from right. 2 between Q and O. O=immediate neighbour of S. Left of M = right of S (equal).

1. The data even in both statements I and II together are not sufficient to answer the question.
2. The data in statement I alone are sufficient to answer the question while the data in statement II alone are not sufficient to answer the question.
3. The data either in statement I alone or in statement II alone are sufficient to answer the question.
4. The data in both statements I and II together are necessary to answer the question.

Correct answer: The data in statement I alone are sufficient to answer the question while the data in statement II alone are not sufficient to answer the question.

Solution

Statement I: P=3, M=6, N=9, S=8 or 10. Case S=8: M is 2 positions right of S; S=10: M is 4 positions left of S. Two possible answers — still ambiguous! Actually with additional constraints about directionality, both S values give different answers. Let's check: S=8 → M(6) is 2 left of S(8). S=10 → M(6) is 4 left of S(10). Source says I alone sufficient — one of the S values may violate another constraint. Statement II: multiple arrangements. Answer per source: I alone sufficient.

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