Question

In the half yearly exam only 70% of the students
were passed. Out of these (passed in half
yearly) only 60% student are passed in annual
exam. Out of those who did not pass the half
yearly exam, 80% passed in annual exam. What
percent of the students passed the annual exam?
Th 56%​

Answer 1

Answer:

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Answer 2

Answer:

Let the total students are 100

Given : 70% students passed in half yearly examination

Then, passed students in half yearly =

100

70

×100=70

Out of these passed in half yearly, 60% students passed in yearly

Then, passed students in yearly examination =

100

60

×70=42

The no. of students not passed in half yearly examination =100−70=30

Given out of these who did not pass the half yearly examination, 80% students passed in annual exam

Then, out of these student who did not pass in half yearly examination, no. of students passed in yearly =

100

80

×30=24

Then, total no. of students passed annual examination =42+24=66

Then, % of passed students =

100

66

×100=66%