Question

    Three of the following four number-pairs are alike in a certain way and one is different. Find the odd one out.

    A 18 : 323 Correct Answer Incorrect Answer
    B 9 : 82 Correct Answer Incorrect Answer
    C 21 : 442 Correct Answer Incorrect Answer
    D 16 : 257 Correct Answer Incorrect Answer

    Solution

    1. 18 : 323 → (18 x 18) – 1 = 323 2. 9 : 82→ (9 x 9) + 1 = 82 3. 21 : 442 → (21 x 21) + 1 = 442 4. 16 : 65 → (16 x 16) + 1 = 257

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