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10th Class Mental Ability Numbers Question Bank Inserting Numbers

  • question_answer
    Find the number which replaces the question mark.

    A)  19                         

    B)         23

    C)  25                         

    D)         31

    Correct Answer: D

    Solution :

     We have: \[\sqrt{36}+\sqrt{64}+\sqrt{25}+\sqrt{49}=26;\sqrt{9}+\sqrt{25}+\sqrt{16}+\sqrt{81}=21\] So missing number \[=\sqrt{25}+\sqrt{144}+\sqrt{36}+\sqrt{64}=(5+12+6+8)=31\]


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