in a examination, there were 320 boys and 180 girls. 60% of boys and 80% of girls passed. find the percentage of failure students
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8
Solution :-
Total number of boys + girls appeared in the examination = 320 + 180 = 500 students
Total number of boys = 320
Boys passed = 60 %
Boys failed = 100 - 60 = 40 %
Total number of boys failed = (40*320)/100
= 128 Boys failed out of 320 boys.
Total number of girls = 180
Girls passed = 80 %
Girls failed = 100 - 80 = 20 %
Total number of girls failed = (20*180)/100
= 36 girls failed
Total number of boys + girls failed = 128 + 36 = 164 Students
Percentage of failed students = (164*100)/500
= 32.8 %
Answer.
Total number of boys + girls appeared in the examination = 320 + 180 = 500 students
Total number of boys = 320
Boys passed = 60 %
Boys failed = 100 - 60 = 40 %
Total number of boys failed = (40*320)/100
= 128 Boys failed out of 320 boys.
Total number of girls = 180
Girls passed = 80 %
Girls failed = 100 - 80 = 20 %
Total number of girls failed = (20*180)/100
= 36 girls failed
Total number of boys + girls failed = 128 + 36 = 164 Students
Percentage of failed students = (164*100)/500
= 32.8 %
Answer.
Answered by
4
Given:
No. of boys= 320
No. of girls= 180
Total no. of students = 180+320=500
No. of boys passed= 60% of 320= (60/100) ×320 = 192
No. of boys failed = 320- 192= 128
No. of girls passed = 80% of 180 = (80/100) ×180= 144
No. of girls failed = 180-144= 36
Total students failed = 128=36= 164
% of students failed = (No. of failed students/ total students) ×100
% of students failed = (164 /500) ×100= 164/5 =32.8%
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The percentage of failure students= 32.8 %
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Hope this will help you......
No. of boys= 320
No. of girls= 180
Total no. of students = 180+320=500
No. of boys passed= 60% of 320= (60/100) ×320 = 192
No. of boys failed = 320- 192= 128
No. of girls passed = 80% of 180 = (80/100) ×180= 144
No. of girls failed = 180-144= 36
Total students failed = 128=36= 164
% of students failed = (No. of failed students/ total students) ×100
% of students failed = (164 /500) ×100= 164/5 =32.8%
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The percentage of failure students= 32.8 %
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Hope this will help you......
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