1. What is the cardinality of set X = {0, 1, 2, 3, 4, 5}? 

a. 5
b. 6
c. 7
d. 8

2. If A = {0, 1, 3, 5, 7, 9}; B = {0, 2, 4, 5, 6, 8} and C = {0, 1, 4, 5, 7, 8}. What is the intersection of the three sets? 

a. {0, 5}
b. {0, 1, 4}
c. {0, 1, 4, 7}
d. {0}

3. Given X = {1, 2, 4, 5, 6, 7, 9} and Y = {2, 3, 4, 5, 6}. Find X – Y. 

a. {1, 7, 9}
b. {2, 4, 5, 6}
c. {1, 4, 5, 9}
d. {2, 4, 6}

4. How many subsets can you form in the given set A = { h, o, n, e, s, t, y }? 

a. 128
b. 64
c. 32
d. 16 ​