The number of subsets of the set A={1,2,3,…,9} containing at least one odd number is
A
324
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B
396
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C
496
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D
512
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Solution
The correct option is C496 Total number of subsets =29 In A, there are five odd numbers (four even numbers). So, the number of subsets without odd numbers (only even numbers) =24 ∴ Required number of subsets = Total number of subsets − Number of subsets without odd numbers =29−24=512−16=496