two overlapping circles
8 in the overlap
B and C are bio and chem alone. O is Overlap
B + C + O = 60
B= C + 6
O = 8
so
B + C = 52
B - C = 6
2 B = 58
B = 29
then C = B-6 = 23
check
B+ C+ O = 29 + 23 + 8 = 60
In a class of 60 students, the number of students who passed Biology is 6 more than the number who passed Chemistry .Every students passed at least one of the two subjects and 8students passed both subjects. Illustrate the information on venn diagram.
1 answer
1 answer