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    Question

    Find the value of  questions mark (?)  in the given number series.

    140, 146, 170, 224, ?,

    470
    A 300 Correct Answer Incorrect Answer
    B 325 Correct Answer Incorrect Answer
    C 320 Correct Answer Incorrect Answer
    D 285 Correct Answer Incorrect Answer
    E none of these Correct Answer Incorrect Answer

    Solution

    ATQ, 140 + 2 × 3 = 146 146 + 4 × 6 = 170 170 + 6 × 9 = 224 224 + 8 × 12 = 320 320 + 10 × 15 = 470

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