Logic & Deduction

In this lesson, you will learn how to solve logic and deduction questions. These test your ability to think clearly, follow clues, and work out the answer step by step. They are some of the most challenging — but also the most rewarding — questions in the GL 11+ exam.

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What Are Logic Questions?

Logic questions give you a set of statements (clues) and ask you to work out a conclusion. You might need to:

• Work out who sits where
• Decide what is true or false
• Put things in order
• Match people to items

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Key Thinking Skills

Before we dive into examples, here are the key skills you need:

1. Read carefully — every word matters in a logic question.
2. Use elimination — cross off options that cannot be right.
3. Draw a table or grid — this helps you organise the information.
4. Look for definite facts first — start with clues that tell you something for certain.
5. Work step by step — do not try to solve everything at once.

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Type 1: Ordering / Ranking

Worked Example 1