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    Which of the following numbers will replace the question marks (?) in the given series? 324, 289, 256, 225, ? ​​
    Question

    Which of the following numbers will replace the question marks (?) in the given series?
    324, 289, 256, 225, ? ​​

    A.

    180

    B.

    200

    C.

    169

    D.

    196

    Correct option is D

    Given: ​324, 289, 256, 225, ? ​​
    Logic: Each number is the square of a decreasing number.
    324 = 182
    289 = 172
    256 = 162
    225 = 15
    Similarly; 
    142 = 196

    Thus, correct option is (d).


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