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    Question

    Select the option that is related to the fifth number in

    the same way as the second number is related to the first number and the fourth number is related to the third number- 1 : 7 :: 3 : 215 :: 4 : ?
    A 453 Correct Answer Incorrect Answer
    B 342 Correct Answer Incorrect Answer
    C 511 Correct Answer Incorrect Answer
    D 363 Correct Answer Incorrect Answer

    Solution

    The logic followed here is- 1 x 2 = 23 = 8 – 1 = 7 3 x 2 = 63 = 216 – 1 = 215 4 x 2 = 83 = 512 -1 = 511

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