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    Question

    Which of the following pair replaces? in series given.

    Q5J, N10N, ? , H40V
    A K20S Correct Answer Incorrect Answer
    B K19R Correct Answer Incorrect Answer
    C L20R Correct Answer Incorrect Answer
    D K20R Correct Answer Incorrect Answer

    Solution

    Q – 3 = N, N – 3 = K, K – 3 = H 5 × 2 = 10, 10 × 2 = 20, 20 × 2 = 40 J + 4 = N, N + 4 = R, R + 4 = V

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