If c passed chemistry, then c+6 passed biology
If x passed both, then all we know is that
c + c+6 - x = 60
2c-x = 54
x can be anything from 0 to 52.
In a class of 60 students,the number of students who passed biology is 6 more than the number who passed chemistry.Every student passed at least one of the two subjects.i.how many students passed biology ii.how many students passed chemistry iii.how many students passed only one subject
1 answer
1 answer