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Question

Cardinal number of the set G={x:xN,5<x<9} is __.


A

3

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B

4

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C

5

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D

2

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Solution

The correct option is A

3


If xN such that 5<x<9, then the possible values of x are 6, 7 and 8.
i.e., G={6,7,8}
n(G)=3
Thus, the cardinal number of the set G is 3.

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