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    Three of the following number pairs are alike in some manner and one is different. Select the odd number pair. (NOTE: The second number in the given
    Question

    Three of the following number pairs are alike in some manner and one is different. Select the odd number pair.
    (NOTE: The second number in the given number pairs is formed by performing a certain operation on the first number The same operation is followed in all the number pairs except one. Find that odd number pair.)

    A.

    297:33

    B.

    189:21

    C.

    100:12

    D.

    63:7

    Correct option is C

    Logic: all first number completely divided by second numbers in 9 times except option c.
    (a) 297:33 → 297 ÷ 33 = 9
    (b) 189:21 → 189 ÷ 21 = 9
    (c) 100:12 → 100 ÷ 12 = 8.33
    (d) 63:7 → 63 ÷ 7 = 9 
    Thus,  the odd one out is option (c).

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