Find the cardinality of the given set:
$B = \{x : x a m u l t i p l e o f 3, x \leq 20\}$ .

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Solution

Finding the cardinality of the given set.
The number of distinct elements in a set is called it's cardinality.
In the given set $B$ , the elements are $3, 6, 9, 12, 15$ and $18$ $i . e 6$ elements.
Hence, the cardinality of the given set $B$ is $6$

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Find the cardinality of the given set:B=x:xamultipleof3,x≤20.

Finding the cardinality of the given set.The number of distinct elements in a set is called it's cardinality.In the given set B, the elements are 3,6,9,12,15 and 18 i.e6 elements.Hence, the cardinality of the given set B is 6

Find the cardinality of the given set:
$B = \{x : x a m u l t i p l e o f 3, x \leq 20\}$ .

Finding the cardinality of the given set.
The number of distinct elements in a set is called it's cardinality.
In the given set $B$ , the elements are $3, 6, 9, 12, 15$ and $18$ $i . e 6$ elements.
Hence, the cardinality of the given set $B$ is $6$