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Verbal Reasoning

IMO Maths · Class 6

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TOPIC 1 OF 17 · LOGICAL REASONING

Verbal Reasoning 🔤

Four skills, one section: spotting the hidden relationship in an analogy, sorting the odd one out, cracking a letter code, and finding the rule in a series. Every one of them rewards a sharp eye over hard calculation.

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Part 1 · Analogy

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Part 2 · Classification

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Part 3 · Coding-Decoding

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Part 4 · Series

1

Analogy ⚖️

Find exactly HOW the first pair is connected, then build the same connection on the other side.

Relationship typeExample
Part to wholePage : Book :: Wheel : Car
Worker to toolCarpenter : Saw :: Barber : Scissors
Capital to countryDelhi : India :: Tokyo : Japan
Cause to effectFire : Smoke :: Rain : Flood
Number relationship6 : 36 :: 8 : 64 (square)
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Game 1 — Complete the Analogy

2

Classification 🗂️

Three of the four items share ONE property. Ask what most of them have in common before you decide.

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Rule for a fair question: only ONE property should ever pick out a single odd one. If two different rules (like "even" and "not a multiple of 3") both point at different items, the question is broken — a well-made set always has just one defensible answer.

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Game 2 — Odd One Out

3

Coding-Decoding 🔐

Every code has one hidden rule. Write out the alphabet with numbers under it, and the rule becomes visible.

🔑 Two common code types

Shift code: every letter moves forward or back by the same amount. CAT + 1 each → DBU.

Reverse-alphabet code: A ↔ Z, B ↔ Y, C ↔ X … each letter swaps with its "opposite" from the other end. CAT → XZG.

🪜 The reverse-alphabet shortcut

A letter's position from the start plus its position from the end always adds up to 27. So D (4th) pairs with the 23rd letter, which is W.

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Game 3 — Crack the Code

4

Number & Alphabet Series 🔢

Write the gaps underneath. If they are not equal, look for a growing pattern, a square/cube rule, or two operations alternating.

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Game 4 — What Comes Next?

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Verbal Reasoning Mock Test

12 IMO-style questions. Use rough paper for the codes and series! 🍀

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