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NTSE Sample Paper NTSE MAT Practice Test-9

  • question_answer
    Direction: The numbers in the first two figures are arranged according to a particular rule. You have to select the correct answer which is to be written at the place of sign of interrogation in the third figure.
         
         
     

    A) 81, 146

    B) 63, 128

    C) 81, 103

    D) 64, 129

    E) 110, 175

    Correct Answer: A

    Solution :

    ?Opposite numbers are squares of each other and these four numbers are added to get the bottom number. e.g. \[{{1}^{2}}=1;\text{ }{{8}^{2}}=64\text{ }and\text{ }1+1+8+64\text{ =}74.\] \[\therefore \]The missing numbers are \[{{9}^{2\text{ }}}=81\]and 7+9+81+49= 146. \[\Rightarrow \](81, 146) is the answer.


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