4. if A ={x/x are factors of 12},which is not an element of A?
a) 2
b) 6
c) 12
d) 24
5. how many subsets does a set of 5 elements have?
a) 6
b) 12
c) 24
d) 32
6. given the set of letters in the word "love"what is the cardinality of the given set?
a) 11
b) 6
c) 8
d) 4
7. the following are subsets of U={5,10,15,20,25,30,35,40,45,50} Except?
A.{10,20,30,50}
B.{5,10,15,20,25,37,40}
C.{5, 10,20}
D.{}
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Answer:
4. d) 12
5. d) 32
6. d) 4
7. b) {5,10,15,20,25,37,40}