Railways Sample Paper RRBs Assistant Loco Pilot and Technician CBT STAGE-I Sample Paper-10

  • question_answer
    The ratio between the ages of Reena and Meena is 3 : 1, respectively. If the age of Reena would be two times the age of Meena after 10 yr, then what was ratio between their ages 5 yr ago?

    A)  4 : 3    

    B)         5 : 1

    C)  1 : 3    

    D)  3 : 4

    Correct Answer: B

    Solution :

    Present age of Reena and Meena are 3x yr and x yr. respectively. Given, \[\frac{(3x+10)}{(x+10)}=\frac{2}{1}\] \[\Rightarrow \]   \[3x+10=2x+20\] \[\therefore \,\]    \[x=20-10=10\] 5 yr ago, ratio between their age \[=\frac{3\times 10-5}{10-5}=\frac{25}{5}=5:1\]


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