What is the cardinality of the set of odd positive integers less than 10?
A. 10
B. 5
C. 3
D. 20
Answer:A
What is the cardinality of the set of odd positive integers less than 10?
A. 10 B. 5 C. 3 D. 20
Explanation: Set S of odd positive an odd integer less than 10 is {1, 3, 5, 7, 9}. Then, Cardinality of set S = |S| which is 5.