A teacher gave her class two exams; 60% of the class passed the second exam, but only 48% of the class passed both exams. What percent of those who passed the second exam also passed the first exam?

Question

anonymous · Answer

here is an easy trick to know
since you don't know how many students were in the class, pick a number and work with the number
a good number to pick is 100

anonymous · Answer

48 students passed both exams, 60 past the first one

anonymous · Answer

can you help me on what to do next

anonymous · Answer

i made a typo there, should have been 48 students passed both exams, 60 passed the second one
out of the 60 students who passed the second exam, 48 also passed the first one
you are asked 
 What percent of those who passed the second exam also passed the first exam?

anonymous · Answer

you job it to find the percent for $\frac{48}{60}$

anonymous · Answer

divide and move the decimal over two places

anonymous · Answer

or you can say 
$$\frac{48}{60}=\frac{8}{10}=.8=80\%$$

anonymous · Answer

clear enough?

anonymous · Answer

yea thank you

anonymous · Answer

yw