The cardinal number of the set A - x - x is a natural number - 20 divisible by 7 or 9 is

The correct option is A 4Cardinal number of a set means the number of elements a SET has. #160;As per the description of the SET, we notice that set A = ...

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Standard VII

Mathematics

Equal Sets

The cardinal ...

Question

The cardinal number of the set A ={ x : x is a natural number $\leq$ 20 divisible by 7 or 9} is

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Solution

The correct option is A 4
Cardinal number of a set means the number of elements a SET has.

As per the description of the SET, we notice that set A $= {7, 9, 14, 18}$

Hence, cardinal number of SET A is $4$

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The cardinal number of the set A ={ x : x is a natural number ≤ 20 divisible by 7 or 9} is

The correct option is A 4Cardinal number of a set means the number of elements a SET has. As per the description of the SET, we notice that set A ={7,9,14,18}Hence, cardinal number of SET A is 4

The cardinal number of the set A ={ x : x is a natural number $\leq$ 20 divisible by 7 or 9} is

The correct option is A 4
Cardinal number of a set means the number of elements a SET has.

As per the description of the SET, we notice that set A $= {7, 9, 14, 18}$

Hence, cardinal number of SET A is $4$