Direction : Study the following information carefully to answer the questions.…
2024
Direction : Study the following information carefully to answer the questions.
Five persons - M, N, O, P and Q have five different ships - A, B, C, D and E docked at five different ports - R, S, T, U, and V. All the information is not necessarily in the same order.
N doesn’t have Ship B and Ship E. Ship B is not docked at Port S and Port V. Q doesn’t dock the ship in Port S and Port R. O doesn’t dock in the ship in Port S, Port U and Port V. M, O and P doesn’t have ship E. Ship D and ship E is not docked at Port U. P doesn’t have ship C and ship B. P doesn’t dock the ship at Port U and Port V. The person whose ship is docked at Port R doesn’t have Ship C and A. P doesn’t dock the ship at Port R and Port S. M doesn’t dock the ship at Port S. The person whose ship is docked at Port S and Port U doesn’t have ship D. The person whose ship is docked at Port S doesn’t have Ship A. The person whose ship is docked at Port T doesn’t have Ship D. Port R doesn’t have Ship B docked.
Which among the following combination is correct?
- A.
P – Ship A, Port U
- B.
M – Ship B, Port S
- C.
O – Ship D, Port V
- D.
N, Ship C, Port S
- E.
None of these
Show answer & explanation
Correct answer: D
Concept
This is a constraint-satisfaction (elimination) puzzle: a fixed set of persons, ships and ports must be matched one-to-one. The method is to treat every "does not" clue as a forbidden cell in a person-by-attribute grid, force the values that have only one slot left, and propagate until each person owns exactly one ship and one port.
Application — fixing the ships
Ship E: M, O and P cannot have E, and N cannot have E, so E is forced to Q.
Ship B: P cannot have B (also not C), and Q is now fixed to E, so Ship B must go to one of M, N or O. N also cannot have B, leaving Ship B for M or O.
Port assignment for P: P is barred from U, V, R and S, so P must be at Port T. The person at Port T cannot have Ship D, and P cannot have B or C, so P holds A or another non-D ship — P takes Ship A.
Port R: the person at R cannot have Ship C, A or B. A is taken by P and B is excluded at R, so R must hold Ship D. D is barred at U, S and T, so D sits at Port R — assigned to O (O is also barred from S, U and V, leaving R or T, and T is P's, so O is at R with D).
Remaining ships B and C go to M and N. N cannot have B, so N takes C and M takes B.
Ports left are S, U, V for M, N, Q. Q cannot be at S or R, M cannot be at S, so Port S is forced to N. Q and M fill U and V; with B (M's ship) placed, M is at U and Q at V.
Result
The unique grid is: M – Ship B (Port U), N – Ship C (Port S), O – Ship D (Port R), P – Ship A (Port T), Q – Ship E (Port V). Therefore the combination N – Ship C – Port S is the correct match.
Person | Ship | Port |
|---|---|---|
M | B | U |
N | C | S |
O | D | R |
P | A | T |
Q | E | V |
Cross-check
N has Ship C (not B or E) and sits at Port S — consistent with "person at S has no Ship A and no Ship D" (C is allowed).
Every "does not" clue is satisfied: P is at T (not U/V/R/S), O is at R with D, Q holds E, and no barred ship-port pairing occurs.