Two marks exercise problems III — task. Mathematics State Board, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Out of

$500$ car owners investigated,

$400$ owned car

$A$ and

$200$ owned car

$B$ ,

$50$ owned both

$A$ and

$B$ cars. Is this data correct?

Proof:

$n(A \cup B) =$

$n(A) =$

$n(B) =$

$n(A \cap B) =$

$n(A) + n(B) - n(A \cap B) =$

The given data is .

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