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    Question

    321,  240,  ?,  105,  51, 

    6 Find the number in place of (?) in the given number series 
    A 168 Correct Answer Incorrect Answer
    B 178 Correct Answer Incorrect Answer
    C 128 Correct Answer Incorrect Answer
    D 158 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, 321 – (9 × 9) = 240 240 – (9 × 8) = 168 168 – (9 × 7) = 105 105 – (9 × 6) = 51 51 – (9 × 5) = 6

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