Seven persons J, K, L, M, N, O and P visit a tourist places one after the other, but not necessarily in the same order.
Atleast three persons visit after K.
| Case 1 | Case 2 | Case 3 | Case 4 |
| Sr. no | Persons | Persons | Persons | Persons |
| 1 | | | | K |
| 2 | | | K | |
| 3 | | K | | |
| 4 | K | | | |
| 5 | | | | |
| 6 | | | | |
| 7 | | | | |
One person visits between K and O.
O visits immediate before J. J visits immediate before P. Thus, case 1 is invalid.
| Case 2 | Case 3 | Case 4 |
| Sr. no | Persons | Persons | Persons |
| 1 | | | K |
| 2 | | K | |
| 3 | K | | O |
| 4 | | O | J |
| 5 | O | J | P |
| 6 | J | P | |
| 7 | P | | |
Two persons visit between M and O, who visits before N. Thus, case 2 is invalid.
| Case 3 | Case 4 |
| Sr. no | Persons | Persons |
| 1 | M | K |
| 2 | K | |
| 3 | | O |
| 4 | O | J |
| 5 | J | P |
| 6 | P | M |
| 7 | N | N |
L visits after M. Thus, case 4 is invalid.
Therefore, the final arrangement is:
| Sr. no | Persons |
| 1 | M |
| 2 | K |
| 3 | L |
| 4 | O |
| 5 | J |
| 6 | P |
| 7 | N |
K visits immediate after M.
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