Answer:
Percent of those who passed the second exam also passed the first exam = 80 %
Step-by-step explanation:
Let the number of students be 100.
We have 60% of the class passed the second exam
Number of students passed the second exam[tex]=\frac{60}{100}\times 100=60[/tex]
We also have
Only 48% of the class passed both exams
Number of students passed both exams[tex]=\frac{4}{8100}\times 100=48[/tex]
Percent of those who passed the second exam also passed the first exam [tex]=\frac{48}{60}\times 100=80 \%[/tex]
