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Railways Sample Paper RRB (Group D) Sample Test Paper-1

  • question_answer
    In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. A student attempted all the 200 questions and scored, in all 200 marks. The number of questions, he answered correctly was

    A)  82                   

    B)  80

    C)  68                   

    D)  60

    Correct Answer: B

    Solution :

    [b] If the number of correct answers be x, then \[x\times 4-1.\,\,(200-x)=200\] \[\Rightarrow 4x-\,200+x=200\] \[\Rightarrow 5x=400\] \[\Rightarrow x=\frac{400}{5}=80\]


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