Which of the following set has the cardinality equals to 5?
A. Set A is the set of counting numbers less than 5.
B. Set B is the set of letters in the word "RACER".
C. Set C is the set of positive multiples of 5.
D. Set D is the set of names of the fingers.
A. Set A is the set of counting numbers less than 5.
B. Set B is the set of letters in the word "RACER".
C. Set C is the set of positive multiples of 5.
D. Set D is the set of names of the fingers.
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Answer:
B.
let B={R,A,C,E,R}
so The set of letters in a word "RACER" =5
therefore the right answer is the Set of B