Ranking in a row — Logical reasoning for kids

How to think it through

Counted twice — “counting from both ends counts the child twice, so take 1 away”

1. Total = position from the left + position from the right − 1.
2. Position from the right = total − position from the left + 1.
3. Children between two people: change both positions to “from the left”, then (bigger − smaller − 1).

Use it for: Ranking questions in reasoning tests, class ranks, and queues.

Worked example: Riya is 7th from the left and 12th from the right in a row of children. How many children are in the row? → 18

✏️ Practice

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

🏁 Lesson 11 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 🏃 Row Ranker 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.

🖨️ Ranking in a Row Worksheet

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