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  • Question
  • For which pair of courses is the number of boys the same?


  • Options
  • A. A and D
  • B. B and D
  • C. C and F
  • D. E and F

  • Correct Answer
  • A and D 

    Explanation

    As per first graph,
    The number of students for course A = Total number of students x 20%
    As per second graph,
    The number of girls for course A = Total number of girls x 30%
    Number of boys in course 'A' = The number of students for course A - The number of girls for course A
    Number of boys in course 'A' = (1200 x 20/100 ) - ( 800 x 30/100 ) = 240 - 240 = 0
    Similarly,
    Number of boys in course 'B' = (1200 x 15/100 ) - (800 x 10/100) = 180 - 80 = 100
    Number of boys in course 'C' = (1200 x 5/100 ) - (800 x 2/100) = 60 - 16 = 44
    Number of boys in course 'D' = (1200 x 35/100 ) - (800 x 30/100) = 420 - 240 = 180
    Number of boys in course 'E' = (1200 x 12/100 ) - 800 x 14/100 ) = 144 - 112 = 32
    Number of boys in course 'F' = (1200 x 13/100 ) - ( 800 x 14/100 ) = 156 - 112 = 44
    Hence, number of boys in course 'C' and 'F' are same which is 44.


  • More questions

    • 1. 
      The number of students of College B in year 2008 is what percent of the total students of College B in all the years together? (Round off to two digits after decimal)

    • Options
    • A. 20.61
    • B. 23.79
    • C. 21.79
    • D. 17.29
    • Discuss
    • 2. 
      In which of the following schools, percentage increase in the number of students from the year 1990 to 1995 is maximum?

    • Options
    • A. A
    • B. B
    • C. C
    • D. D
    • Discuss
    • 3. 
      For which of the following years the % of rise/fall in production from the previous year the maximum for company B?

    • Options
    • A. 1992
    • B. 1993
    • C. 1994
    • D. 1995
    • Discuss
    • 4. 
      Cars of which color are 20% less popular than white colored cars?

    • Options
    • A. Black
    • B. Golden
    • C. Red
    • D. Blue
    • Discuss
    • 5. 
      What is the average number of candidates (approximately) found eligible for Post III from all states?

    • Options
    • A. 6700
    • B. 6200
    • C. 4200
    • D. 4500
    • Discuss
    • 6. 
      The total number of students coming to school by bus exceeds the total number of students coming to school by walking, by:

    • Options
    • A. 10 %
    • B. 12.5 %
    • C. 11 %
    • D. 11.5 %
    • Discuss
    • 7. 
      What is the Riya's overall pereentage of marks in all subjects together?

    • Options
    • A. 68.3
    • B. 71.2
    • C. 72.8
    • D. 75.6
    • Discuss
    • 8. 
      Based on given graph, Answer the below question.
      Out of a total 550 students, how many students did not prefer Math or Economics?

    • Options
    • A. 462
    • B. 154
    • C. 196
    • D. 396
    • Discuss
    • 9. 
      What was the average per annual increase in sales (in $ Billion) from 1994 to 1998?

    • Options
    • A. 50
    • B. 60
    • C. 80
    • D. 100
    • Discuss
    • 10. 
      If the total expenditure of Company B in 1994 was $ 200 , what was the total income?

    • Options
    • A. $ 160 million
    • B. $ 240 million
    • C. $ 260 million
    • D. Data inadequate
    • Discuss


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