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Banking Sample Paper RRB Officer (Main) Sample Test Paper-1

  • question_answer

    Directions (Q. 61 - 65): Study the following graph carefully to answer the given questions: The bar graph shows the population of City P and City Q over the years   The table shows the percentage distribution of male and female population in City P and Q in different years.  
    Years City P City Q % literature
    % male % female % male % female
    2010 - 65 28 - 28
    2011 35 - 32 - 72
    2012 - 48   65 62
    2013 42 - - 27 65
    2014 - 38 - 38 45
    2015 62 - 45 - 55
      Note: Literacy percentage remains the same for either of the cities; e.g. 28% population is literate in City P in 2010 and 28% population is literate in City Q in the same year.  

    What is the approximate average female population of City P for all the years together? (in million)

    A)  16.4                            

    B)  32.4                

    C)         28.3                

    D)         23.4                

    E)         36.5

    Correct Answer: A

    Solution :

    Required average of female population \[=\frac{10\times \frac{65}{100}+40\times \frac{65}{100}+10\times \frac{58}{100}+50\times \frac{38}{100}+70\times \frac{38}{100}}{6}\]\[=\frac{1}{6}\times (6.5+2.6+14.4+5.8+19+26.6)\] \[=\frac{1}{6}\times 98.3=16.38\]million\[\approx 16.4\,\,\text{million}\]


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