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Banking Sample Paper SBI Junior Associates (Main) Sample Test Paper-1

  • question_answer
    The total of the ages of a class of 60 girls is 900 years. The average age of 20 girls is 12 years and that of another 20 girls is 16 years. What is the average age of the remaining girls?

    A)  14 years                      

    B)  15 years                      

    C)  16 years                      

    D)  17 years

    E)  Other than those given as options

    Correct Answer: D

    Solution :

    Average age of the remaining girls \[=\frac{900-(20\times 12+20+16)}{60-20-20}\] \[=\frac{900-(240+320)}{20}=\frac{900-560}{20}\] \[=\frac{340}{20}=17\]years


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