Study the Following Frequency Polygon and Answer the Question

Study the following frequency polygon and answer the question numbered 148 to 150 Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years from 2008 to 2013.

cgl9e-150

 

A. The increase in percentage of passed student from 2008 to 2011 approximately is:

  1. 50.5%
  2. 53.05%
  3. 55%
  4. 54.5%

B. The decrease in percentage of passed students from 2011 to 2012 approximately:

  1. 8.25%
  2. 8.24%
  3. 8.22%
  4. 8..27%

C. The average of passed students in the year 2008, 2009, 2012 approximately is:

  1. 134.41
  2. 134.32
  3. 134.56
  4. 134.67
Monis Rasool Professor Asked on 28th August 2015 in Maths.
Add Comment
  • 1 Answer(s)

    A. Answer: (4) 54.5 %

    Explanation:-
    The students passed in 2008 = 110

    Students pass in 2011 = 170
    The increase passed students from 2008 to 2011 = 170 – 110
    = 60

    The increase in percentage of passed student from 2008 to 2011 = 60 x 100/110
    = 54.5% (Approximately)

    Hence, the  answer is (4) 54.5%.

    B.  Answer: (2) 8.24%

    Explanation:-
    The students pass in 2011 = 170
    The students pass in 2012 = 158

    Decreased students = 170 – 156
    = 14

    The decrease in percentage of passed students from 2011 to 2012 = 14 x 100/170
    = 8.24% (approximately)

    Hence, the answer is (2) 8.24%.

    C.  Answer:  (4) 134.67

    Explanation:-
    The total passed students in 2008, 2009, 2012 = 110 + 138 + 156
    = 404

    Then, the average of passed students in the year 2008, 2009, 2012 = 134.67 (approximately)

    Hence, the answer is (4) 134.67 (approximately).

    Anurag Mishra Professor Answered on 3rd September 2015.
    Add Comment
  • Your Answer

    By posting your answer, you agree to the privacy policy and terms of service.