Ravi's mother and Rani — Blood Relations Aptitude Question
Ravi's mother and Rani: Ravi's mother is the only daughter of Rani's father. How is Rani related to Ravi? Answer and worked solution on CodeKairo.
- Topic: Blood Relations
- Section: Logical Reasoning
- Difficulty: Medium
- Time target: 75 seconds
Question
Ravi's mother is the only daughter of Rani's father. How is Rani related to Ravi?
Options
- Aunt
- Sister
- Mother
- Grandmother
Show the answer and the worked solution
Correct answer: C. Mother
Worked solution
- Rani's father has only one daughter, and Rani is his daughter — so that daughter is Rani.
- Ravi's mother is therefore Rani.
- Rani is Ravi's mother.
Answer: Mother.
The idea
The word 'only' collapses the phrase onto the person named in it. Watch for that whenever a relation is described as unique.
Shortcut. Rani is a daughter of her father; if he has only one daughter, it is Rani, so the sentence reads 'Ravi's mother is Rani'.
Common trap. "Aunt" — reading 'the only daughter of Rani's father' as Rani's sister, which would make Rani Ravi's aunt; 'only' leaves no room for a sister.