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If A is set of natural numbers, B is set of odd natural numbers and C is set of even natural numbers, then find A-B.

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If A is set of natural numbers, B is set of odd natural numbers and C is set of even natural numbers, then find A-B.

(a) A

(b) B

(c) C

(d) B-C

I had been asked this question in a job interview.

My question is based upon Operation on Sets-2 in section Sets of Mathematics – Class 11

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Correct choice is (c) C

For explanation I would say: Natural number which is not odd is even. A-B means set of natural numbers excluding odd natural numbers so, A-B is set of even natural numbers Hence, A-B=C.

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