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NTSE Sample Paper NTSE SAT Practice Test-12

  • question_answer
    A batsman scores 80 runs in his sixth innings and thus increases his average by 5. What is his averages after sixth innings?

    A) 50                                

    B) 55

    C) 60                                

    D) 65

    Correct Answer: B

    Solution :

    [b] \[\frac{{{T}_{5}}+80}{6}=\frac{{{T}_{5}}}{5}+5,\] where\[{{T}_{5}}\] represents total of 5 innings by the batsman or \[\frac{{{T}_{5}}+80}{6}=\frac{{{T}_{5}}+25}{5}\] or \[5{{T}_{5}}+400=6{{T}_{5}}=150\] or \[{{T}_{5}}=250\] Total score of 6 innings by the batsman =250 +80=330  \[\therefore \] Average \[=\frac{330}{6}=55\]


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