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9th Class Mental Ability Mathematical Operations Question Bank Mathematical Operations

  • question_answer
    Consider \[\alpha \] as 'greater than', \[\beta \] as 'less than', \[\gamma \] as "not greater than', \[\delta \] as 'not less than' and \[\theta \] as 'equal to'. Also, P, Q and R as positive real numbers. Lf 3R \[\gamma \]P and Q\[\theta \]2R,then

    A) \[3Q\alpha 2P\]                         

    B) \[Q\,\theta \,P\]                          

    C) \[Q\beta P\]                               

    D) \[Q\,\delta \,2\,P\]

    Correct Answer: C

    Solution :

    :\[3R\gamma P\] and \[~Q\,\theta \,2\,R\] \[\Rightarrow 3R\cancel{>}P\]and Q=2R \[\Rightarrow 3\left( \frac{Q}{2} \right)\cancel{>}P\Rightarrow Q\underline{<}\frac{2P}{3}\Rightarrow Q<P\]


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