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Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-7

  • question_answer
    The difference between the present ages of Anil and Sudhir is 6 yr. The ratio between their ages after 4 yr will be 3 : 4. Out of the following what can be the present age of Sudhir?

    A)  15 yr   

    B)  18 yr

    C)  20 yr               

    D)  24 yr

    Correct Answer: C

    Solution :

    \[\because \] Present age of Sudhir = x yr \[\therefore \] Present age of Anil \[=(x-6)yr\] Given, \[\frac{(x-6)+4}{x+4}=\frac{3}{4}\] \[\Rightarrow \]   \[\,4x-8=3x+12\] \[\Rightarrow \]   \[\,4x-3x=12+8\] \[\therefore \]                  \[x=20\]


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