3) In the class 12.5% students are passed in first class. 20 students are in second
class, 20% studetns are in third class and 17.5% students are failed. Show this
information by pie diagram.
Answers
The pie chart is attached
Let the total number of students be x
Since 12.5% passed in first class, 20% students in third class and 17.5% students failed
Thus, total percentage of first class, third class and failed students
Which means 50% students passed in second class
Thus
50% of x = 20
or, x/2 = 20
or, x = 40
Therefore, the total students in the class are 40
Students passes in first class
= 12.5% of 40
Students passes in third class
= 20% of 40
Students failed
= 17.5% of 40
The pie chart is attached.
Hope this answer is helpful.
Know More:
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a group of people.
Colours Number of people
Blue 18
Green 9
Red 6
Yellow 3
Total 36
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Step-by-step explanation:
The pie chart is attached
Let the total number of students be x
Since 12.5% passed in first class, 20% students in third class and 17.5% students failed
Thus, total percentage of first class, third class and failed students
=12.5 +20+17.5=12.5+20+17.5
=50\%=50%
Which means 50% students passed in second class
Thus
50% of x = 20
or, x/2 = 20
or, x = 40
Therefore, the total students in the class are 40
Students passes in first class
= 12.5% of 40
=40\times \frac{12.5}{100}=40×
100
12.5
=5=5
Students passes in third class
= 20% of 40
=40\times \frac{20}{100}=40×
100
20
=8=8
Students failed
= 17.5% of 40
=40\times \frac{17.5}{100}=40×
100
17.5
=7=7
The pie chart is attached.
Hope this answer is helpful.