Five girls M, N, O, P, Q stand in a row. P is to the right of Q. N is to the left of Q but to the right of M. P is to the left of O. Who is at the extreme right end?

Introduction / Context:
A straightforward single-row ordering with relative left–right statements. We need the person on the extreme right end.

Given Data / Assumptions:

• P is right of Q.
• N is left of Q but right of M ⇒ M < N < Q.
• P is left of O ⇒ P < O.

Concept / Approach:
Combine partial orders: from M < N < Q and Q < P? No—actually P is right of Q ⇒ Q < P; then P < O gives full chain M < N < Q < P < O.

Step-by-Step Solution:
Arrange left→right: M, N, Q, P, O.The rightmost is O.

Verification / Alternative check:
All three statements are satisfied by the lineup above.

Why Other Options Are Wrong:
Any choice other than O contradicts the established chain.

Common Pitfalls:
Accidentally reversing the “left of”/“right of” inequalities.

Final Answer:
O