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Railways Sample Paper RRB (Group D) Sample Test Paper-11

  • question_answer
    In the annual examination Mahuya got 10% less marks than Supriyo in Mathematics. Mahuya got 81 marks. The marks of Supriyo are

    A)  89                   

    B)  90

    C)  87                   

    D)  88

    Correct Answer: B

    Solution :

    [b] Marks of Supriyo\[=x\] marks According to question Mahuya marks=Supriyo marks\[-\]10% of Supriyomarks \[81=x-10%\,\,of\,\,x\Rightarrow x\,\,\left( 1-\frac{10}{100} \right)\] \[81=\frac{9}{10}x\Rightarrow \frac{810}{9}=x\] \[\therefore x=90\,\,marks\]


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