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Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-12

  • question_answer
    A father is 5 times as old as his son. His son is 6 years old. After how many years, will the father be 4 times as old as his son?

    A)  2 years                       

    B)  5 years            

    C)        6 years             

    D)         4 years

    Correct Answer: A

    Solution :

    Son's age = 6 yrs. Father's age =30 yrs. Let 'x' be the yr. after which father will be 4 times as old as his son. According to question \[30+x=4(6+x)=30+x=24+4x\Rightarrow 6=3x.\]            \[x=2.\] Hence, require year is 2 yrs.


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