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A Pie Chart is a pictorial representation of a numerical data by non intersecting adjecent sectors of the circle such that area of each sector is proportional to the magnitude of the data represented by the sector. (a) The whole circle represents the total and the sectors, individual quantities. (b) The sectors, are made considering the fact that the central angle is 360° (c) The central angle, 360 ° can be divided in the ratio of quantities given. (d) Central angle or Angle of the sector is :  The number of students studying in different faculties in the years 2001 and 2002 from state A is as follows   Ex. In which faculty there was decrease in the number of students from 2001 to 2002 ? (a) Arts (b)Agriculture (c) Pharmacy (d)None (e) None of these Solution : For Arts, Number of students in 2001 and 2002  For Agriculture Number of students in 2001 and 2002  For pharmacy % is already more and total number of students are already more in 2002, so correct option will be for Agriculture, option (b) is true Ex. What is the ratio between the number of students studying pharmacy in the years 2001 and 2002 respectively ? (a) 4 : 3 (b) 3 : 2 (c) 2 : 3 (d) 7 : 12 (e) None of these Solution : Ratio between the number of students studying pharmacy in the years 2001 and 2002 =  Option (d) is true Ex. What was the approximate percentage increase in the number of students of Engineering from the year 2001 to 2002 ? (a) 17 (b) 15 (c) 25 (d) 23 (e) 20 Solution : Number of engineering students in 2001 =  Number of engineering students in 2002 =  Total increase = 7600 - 6300 = 1300  Ex. In the year 2001, the number of students studying Arts and Commerce together is what percentage of the number of students studying these subjects together in 2002 ? (a) 76 (b) 85 (c) 82 (d) 79 (e) None of these Solution : Number of students studying Arts and Commerce together in 2001 =  Number of students studying Arts and Commerce together in 2002 =   So, option (b) is true Ex. In which of the following faculties the percent increase in the number of students was minimum from 2001 to 2002 ? (a) Arts (b) Science (c) Commerce (d) Medicine (e) Engineering Solution : This question is quit lengthy, First find respective number of students in the given years according to subjects
     Ex. Study the given graph and table and answer the following questions given below. ( Total population of all states given in Pie chart is 25 lakha ) In the year 1998 the data of different states regarding population of states  Sex and literacy wise population ratio
Q(1) Approximately what is the total number of literate people in MH and Kar together ? (a) 4.5 lakhs (b) 6.5 Lakhs (c) 3 lakh (d) 3.5 lakhs (e) 6 lakhs Solution : Population of Kar is 15 %  So, Total number of literate people in Kar is :  Population of MH is 11 %   So, number of literate people in MH and Kar together = 2.29 + 2.25 = 4.54 lakhs So, option (a) is correct Q(2). Approximately what will be the percentage of total male in UP , MH and kerala of the total population of the given states ? (a) 20% (b) 18% (c) 28% (d) 30% (e) 25% Solution : Population in UP is 25 %   Population in MH = 2.75 lakhs from Q(1)  Population in Kerala = 8 %   So, Sum of male population of UP, MH and kerala = 3.93 + 1.17 + 0.85 = 5.95 lakhs  option (e) correct | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Monday, August 22, 2016
Pie Chart
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