Worked Examples
1. The number of students at Asaaman S.H.S 1A, offering the various combinations of Arts, Biology and Chemistry is shown on the diagram below;
U= 65
A = 35
C = 43
B = 31
How many students study:
i. Art and Biology but not Chemistry
ii. Biology but not Art
iii. Chemistry but neither Art nor Biology
iv. Biology and Chemistry
v. Art or Chemistry (or both)?
vi. Art or Chemistry but not both?
vii. Neither Arts nor Biology nor Chemistry
vii. How many students are in the class?
