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If A = {x:x is a natural number and multiple of 3}, B = {x:x is a natural number less than 6}, then find A $\cup$ B.

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{1,2,3}

{1,2,3,5}

{1,2,3,4,5,6,9}

{2,3,4,5,6,7,8,9}

answer is C.

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Detailed Solution

A= {x:x is a natural number and multiple of 3}, B={x:x is a natural number less than 6}

\Rightarrow

A= {3,6,9} and B = {1,2,3,4,5}
A

\cup

B = {1,2,3,4,5,6,9}

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