Explanation
Solving
To solve this, let's break down the statement from the end:
-
"My wife's grandfather's only child":
-
"Daughter of my wife's father-in-law":
-
"She is the sister of [that daughter]":
-
If the woman is the sister of Nirmal's wife's sister, she is a Sister-in-law.
-
If the woman is the sister of Nirmal's wife, she is still a Sister-in-law.
Logical Flow:
-
Wife’s Grandfather’s only child=Wife’s Father
-
Daughter of Wife’s Father=Wife or her Sister
-
Sister of that daughter=Sister-in-law (or Wife)
Since "Sister-in-law" is provided as a specific option (Option 2) and "Wife" is Option 1, the context of these puzzles usually implies a sibling of the wife to distinguish the relationship.
Conclusion: The woman is Nirmal's Sister-in-law.
