Question 31

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waecmaths question: 

If $P=\{y:2y\ge 6\}$and $Q=\{y:y-3\le 3\}$ when y is an integer. Find $P\cap Q$

Option A: 

{3, 4}

Option B: 

{3, 7}

Option C: 

{3, 4, 6, 7}

Option D: 

{4, 5, 6}

waecmaths solution: 

$\begin{align}  & P=\{y:2y\ge 6\} \\  & P=\{3,4,5,---\} \\  & Q=\{y:y-3\le 3\} \\  & Q=\{-,-,-,0,1,2,3,4,5\} \\  & P\cap Q=\{3,4,5\} \\ \end{align}$

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