In a class of 30 pupils, 18 take Social Studies and 17 take Technical Drawing, 3 take neither. How many take both Social Studies and Technical Drawing?
Let students who take both be b. We have:
18 + 17 + 3 - b = 30
38 - b = 30
Using our equation solver, we get:
b = 8
Let students who take both be b. We have:
18 + 17 + 3 - b = 30
38 - b = 30
Using our equation solver, we get:
b = 8