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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-22

  • question_answer
    Average of 5 terms is 10. If average of first two term average is 7 and average of last two term is 13, then what is the value of third term?

    A)  8        

    B)  7    

    C)  10                   

    D)  9

    Correct Answer: C

    Solution :

    Average of 5 terms = 10 \[\therefore \]Total of 5 terms\[=10\times 5=50\] \[\because \]Average of first two terms = 7 \[\therefore \]Total of first two terms\[=7\times 2=14\] \[\because \]Average of last two terms = 13 \[\therefore \]Total of last two terms\[=13\times 2=26\] \[\therefore \]Third term = Total of 5 term \[-\](Total of first two terms + Total of last two terms) \[=50-(14+26)=50-40=10\]


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