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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-2

  • question_answer
    In a committee the average age of 10 people 20 increases by 2 yrs when two people whose age were 45 years and 65 years are replaced by women. Find the average age of the two women?

    A)  68 yrs                          

    B)  65 yrs

    C)  64 yrs              

    D)       63 yrs

    Correct Answer: B

    Solution :

     Short trick Average age of two women             \[=\frac{45+65+10\,\,\,\,\,2}{2}\]                \[=\frac{45+65+20}{2}\]             \[\frac{130}{2}=65\]


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