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Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-32

  • question_answer
    The ratio of the ages of two persons is 4: 7 and age of one of them is greater than that of the other by 30 yr. The sum of their ages is                                                                                       [SSC (CGL) 2014]

    A) 110 yr  

    B) 100 yr

    C) 70 yr                            

    D) 40 yr

    Correct Answer: A

    Solution :

    Let the ages of two persons be\[4x\] and \[7x\] respectively.
    According to the question,
    \[7x-4x=30\]
    \[\Rightarrow \]               \[3x=30\]\[\Rightarrow \]\[x=40\]
    Age of first person \[=4\times 10=40\,\,yr\]
    Age of second person \[=7\times 10=70\,\,yr\]
    Sum of their ages \[=40+70=110\,\,yr\]


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