Blood relations — Logical reasoning for kids

How to think it through

Step by step — “replace each “’s” with the person it names, starting nearest to the child”

1. Start with the person and go one “’s” at a time: father’s → the father; his only son → …
2. “Father’s only son” for a boy is the boy himself. “Father’s father’s only son” is the father.
3. Name the last person from the child’s side: mother’s brother = uncle (mama), father’s sister = aunt (bua), brother’s daughter = niece.

Use it for: Blood relation questions in reasoning tests, and family trees in social studies.

Worked example: Ravi is a boy. How is Ravi’s father’s only son’s sister related to Ravi? Sister

✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

🏁 Lesson 14 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🌳 Family Tree Expert badge when you pass — and a certificate when you finish all 10 lessons of Part 2 · Order and arrangement. You can still take the test without signing in.

🖨️ Blood Relations Worksheet

• Worksheet set 1 (PDF)
• Worksheet set 2 (PDF)
• Worksheet set 3 (PDF)