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7th Class Mathematics Integers Question Bank Number And Ranking

  • question_answer
    Roshan ranked 11th from the top and thirty one from the bottom in a class. How many students are there in the class?

    A) 42                               

    B) 43

    C) 41                   

    D) 40

    Correct Answer: C

    Solution :

    \[{{T}_{r}}=11,{{B}_{r}}=31\] \[\Rightarrow \] no. of students \[={{T}_{r}}+{{B}_{r}}-1=11+31-1=41\]         


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