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NTSE Sample Paper NTSE MAT Practice Test-20

  • question_answer
    If 2 is coded as 5, 4 as 18, 6 as 39, then 10 a  coded as:

    A)  45            

    B)  81

    C)  100           

    D)  105

    Correct Answer: D

    Solution :

     Clearly \[2={{2}^{2}}+1;\text{ }4={{4}^{2}}+2,\text{ }6-{{6}^{2}}+3;\] \[\therefore 10-{{10}^{2}}+5=105.\]


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