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Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-3

  • question_answer
    The price of commodity X increase by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y?

    A)  2010

    B)  2011 

    C)  2012   

    D)  2013

    Correct Answer: B

    Solution :

    [b] Suppose commodity X will cost 40 paise more than Y after z yr. Then, \[(4.20+0.40z)-(6.30+0.15z)=0.40\] \[\Rightarrow \]                           \[0.25z=0.40+2.10\] \[\Rightarrow \]   \[z=\frac{2.50}{0.25}=\frac{250}{25}=10\] \[\therefore \] X will cost 40 paise more than Y, 10 yr after 2001 i.e. in 2011.  


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