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Cardinality of Sets

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Question

Find the total numbers of subsets for set $A = {p, q, r}$

3

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6

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8

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4

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Solution

The correct option is C $8$
Total number of subsets are 8 and are as follows:
${}, {p}, {q}, {r}, {p, q}, {p, r}, {q, r}, {p, q, r}$

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