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Question

Let = {x: x is a natural number and x 10}

A = {a: a is an even natural number and a < 10}

B = {b: b is a prime number and b 9}

Then AI BI is


A

{2, 4, 6, 8}

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B

{ 3, 5, 7}

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C

{1,9,10}

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D

{2, 3, 5, 7}

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Solution

The correct option is C

{1,9,10}


U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

A = {2, 4, 6, 8}

B = {2, 3, 5, 7}

AI = U - A All the elements in U which does not belong to A

= {1, 3, 5, 7, 9, 10}

BI = U - B Elements which belongs to U and does not belong to B

= {1, 4, 6, 8, 9, 10}

AI BI = {1, 9, 10}


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