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    Question

    Find the wrong number, in the given number series.

    320, 160, 80, 50, 20, 10
    A 320 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 80 Correct Answer Incorrect Answer
    D 50 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Observe the pattern:

    320 → 160 → 80 → 50 → 20 → 10

    Check step-by-step:

    320 ÷ 2 = 160 ✅

    160 ÷ 2 = 80 ✅

    80 ÷ 2 = 40 ❌, but we have 50 ❌

    So 50 is incorrect.

    Then:

    Correct sequence:

    320 → 160 → 80 → 40 → 20 → 10

    ✅ Wrong number: 50

    ✅ Correct number: 40

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