Six chairs are in a line. Chairs 1, 3, 5 are blue. Chairs 2, 4, 6 are red. Two people sit down such that neither sits on a red chair and they are not adjacent. How many valid pairs of seats are there?

A 1

B 2

C 3

D 0

✓ Correct Answer: Option A

Blue chairs: 1, 3, 5. Not adjacent pairs: {1,3} adjacent ✗, {1,5} not adjacent ✓, {3,5} adjacent ✗. Only 1 valid pair: {1, 5}.

💡 Why is A) the correct answer?

The correct answer to the question "Six chairs are in a line. Chairs 1, 3, 5 are blue. Chairs 2, 4, 6 are red. Two people sit down such that neither sits on a red chair and they are not adjacent. How many valid pairs of seats are there?" is Option A: 1.

The other options — B) 2, C) 3, D) 0 — are incorrect for this General Knowledge question. As explained above: Blue chairs: 1, 3, 5. Not adjacent pairs: {1,3} adjacent ✗, {1,5} not adjacent ✓, {3,5} adjacent ✗. Only 1 valid pair: {1, 5}.

📚 About This General Knowledge Practice Question

This 2-level General Knowledge question from the World History topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free General Knowledge practice test or use flashcards for spaced repetition review.

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Six chairs are in a line. Chairs 1, 3, 5 are blue. Chairs 2, 4, 6 are red. Two people sit down such that neither sits on a red chair and they are not adjacent. How many valid pairs of seats are there?

✓ Correct Answer: Option A

📚 About This General Knowledge Practice Question

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