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    Question

    The second number in the given number pairs is obtained

    by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs, except one. Find that odd number pair.
    A 3 : 22 Correct Answer Incorrect Answer
    B 7 : 338 Correct Answer Incorrect Answer
    C 11 : 1326 Correct Answer Incorrect Answer
    D 9 : 720 Correct Answer Incorrect Answer

    Solution

    The pattern followed above is: '5' is subtracted from the cube of the 1st number to get the 2nd number. 3 : 22 = 3³ - 5 = 27 – 5  = 22 7 : 338 = 7³ - 5 = 343 - 5 = 338 11 : 1326 = 11³ - 5 = 1331 - 5 = 1326 9 : 720 = 9³ - 5 = 729 - 5 = 724 ≠ 720

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