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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-7

  • question_answer
    The average age of 3 students is 15 years and their ages are in the proportion 2:3:4. The age of eldest student is

    A)  20 years                      

    B)  16 years

    C)  12 years                      

    D)  24 years

    Correct Answer: A

    Solution :

     Sum of ages of three students \[=\text{ }3\times 15=45\]years Age of the oldest student                                 \[=\frac{4}{2+3+4}\times 45\] \[=\frac{4}{9}\times 45=20\] years


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