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Railways Sample Paper RRB (Assistant Loco Pilot & Technician) Sample Test Paper-7

  • question_answer
    The present ages of Sunil and Anil are in the ratio of 7:8 respectively. If four years ago, the ratio of their ages was 5:6 respectively, what is Anil's persentage in years?

    A)  16                               

    B)  14

    C)  10                   

    D)       12

    Correct Answer: A

    Solution :

     Sunil's present age = \[7x\] years Anil's present age = \[8x\] years 4 years ago,               \[\frac{7x\,\,\,\,\,4}{8x\,\,\,\,4}=\frac{5}{6}\] \[\Rightarrow \] \[42x\,\,\,\,\,24=40x\,\,\,\,20\] \[\Rightarrow \] \[42x\,\,\,\,40x=24-20\] \[\Rightarrow \] \[2x=4\] \[\Rightarrow \]\[x=2\]   \[\therefore \] Anil's present age \[=8x\] =16 years


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