gaokao 2020 Q1

gaokao · China · national-III-arts 5 marks Inequalities Set Operations Using Inequality-Defined Sets

Given sets $A = \{ 1,2,3,5,7,11 \} , B = \{ x \mid 3 < x < 15 \}$, the number of elements in $A \cap B$ is
A. 2
B. 3
C. 4
D. 5

Given sets $A = \{ 1,2,3,5,7,11 \} , B = \{ x \mid 3 < x < 15 \}$, the number of elements in $A \cap B$ is\\
A. 2\\
B. 3\\
C. 4\\
D. 5