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a) The number of students represented by a room is 5 .
b) Number of girls passed class 6 = 10 .
Number of boys who passed class 6 = 30 .
Number of boys and girls = 30 + 10 = 40 .
c)
Number of students who passed the exam = 15 + 20
= 35 .
Hence there were 35 students .
d)
Number of students = 35 + 15 = 50 .
Number of students passed = 50 .
Number of appearing students = 55 .
Percentage = 50/55 × 100
= 10/11 × 100
= 10 × 9.09
= 90.9 % approx
e)
Number of appeared students = 30 .
Number of passed = 25 + 5 = 30 .
% of success = 30/30 × 100 = 100%
f)
Number of appeared students = 30 + 10 = 40
Number of students passed = 20 .
% = 20/40 × 100% = 100/2 % = 50%
The percentage is 50%
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a) The number of students represented by a room is 5 .
b) Number of boys and girls = 30 + 10 = 40 .
c) Number of students who passed the exam = 15 + 20 = 35 .
d) Number of students = 35 + 15 = 50 .
Percentage = 50/55 × 100
= 10/11 × 100
= 10 × 9.09
= 90.9 % approx
e)
Number of appeared students = 30 .
Number of passed = 30 .
Success = 30/30 × 100 = 100%
f)
Number of appeared students = 30 + 10 = 40
Number of students passed = 20 .
Percentage = 20/40 × 100% = 100/2 % = 50%
The percentage is 50%
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