Question

    What will come in place of the question mark (?) in the following series?

    40       42       87       266       ?       5366

    A 1051 Correct Answer Incorrect Answer
    B 1081 Correct Answer Incorrect Answer
    C 1091 Correct Answer Incorrect Answer
    D 1071 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    40 x 1 + 2 = 42 42 x 2 + 3 = 87 87 x 3 + 5 = 266 266 x 4 + 7 =  1071 1071 x 5 + 11 = 5366

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