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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-8

  • question_answer
    72% of the students of a certain class took Biology and 44% took Mathematics. If each student took Biology or Mathematics and 40 took both, the total number of students in the class was

    A)  250                             

    B)  320

    C)  200                             

    D)  230

    Correct Answer: A

    Solution :

     Percentage of students in biology and maths both \[=72+44-100\] \[=\text{ }116-100=16%\] \[\because \]\[16%\equiv 40\] \[\therefore \] \[100%\equiv \frac{40}{16}\times 100=250\]


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