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91.  In the following questions, a graphical representation of income and expenditure of 5 persons during the month of January has been given. Read the graph and answer the questions.
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What is the average income of five persons per month?

Discuss
Solution:
Total income = Rs. 30.75 thousand
Average = 30.755  thousand
              = Rs. 6.15 thousand
              = Rs. 6150
92.  The subdivided bar diagram given below depicts the result of B.com students of a college for 3 years. Study the graph and answer the given questions.
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What was the number of third division in 2006?

Discuss
Solution:
Students who passed in third division in 2006
= 140 - 80
= 60
93.  The subdivided bar diagram given below depicts the result of B.com students of a college for 3 years. Study the graph and answer the given questions.
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How many percent of students passed in first division in 2007?

Discuss
Solution:
Total Number of students in year 2007 = 190
Students who passed in first division = 30
∴ Required percent
=30190×100=30019=151519%
94.  The subdivided bar diagram given below depicts the result of B.com students of a college for 3 years. Study the graph and answer the given questions.
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In which year, did the college have the best result for B.com?

Discuss
Solution:
Pass percentage :Year 2006=140170×100=82.35%Year 2007=150190×100=78.94%Year 2008=180240×100=75%
95.  The subject wise number of applicants for the year 2008 and 2009 in a college is given in the following chart. study the graph and answer the questions.
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The number of physics seeking applicants increase by:

Discuss
Solution:
Required percentage increase=145412401240×100=2141240×100=17.258%=17.26%
96.  The subject wise number of applicants for the year 2008 and 2009 in a college is given in the following chart. study the graph and answer the questions.
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The subject for which demand is maximum:

Discuss
Solution:
Maximum demand is Chemistry subject.
97.  The subject wise number of applicants for the year 2008 and 2009 in a college is given in the following chart. study the graph and answer the questions.
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The number of Mathematics seeking applicants increased by:

Discuss
Solution:
Required percentage increase=223018701870×100=3601870×100=19.25%
98.  The subject wise number of applicants for the year 2008 and 2009 in a college is given in the following chart. study the graph and answer the questions.
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The number of Chemistry seeking applicants increased by:

Discuss
Solution:
Required percentage increase=258021702170×100=4102170×100=18.89%
99.  The subject wise number of applicants for the year 2008 and 2009 in a college is given in the following chart. study the graph and answer the questions.
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The subject for which demand is minimum:

Discuss
Solution:
Minimum demand is Botany subject.
100.  Study the bar diagram and answer the following questions.
Demand and production of colour TV of five companies A, B, C, D, and E.
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The difference between average demand and average production of the five companies taken together is:

Discuss
Solution:
Required difference
= 3300+1200+3000+600+25005       2200+2700+1500+1800+10005
= 2120 - 1840
= 280