Question 23

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Jambmaths question: 

The Venn diagram above shows a class of 40 students with the games they play. How many of the students play two games only?

Option A: 

16

Option B: 

4

Option C: 

19

Option D: 

15

Jamb Maths Solution: 

$\begin{align}  & \text{Those who play only two games}=n(Football\cap Tennis\cap Athletic{{s}^{1}})+ \\ & n(Football\cap Tenni{{s}^{1}}\cap Athletics)+n(Footbal{{l}^{1}}\cap Tennis\cap Athletics) \\ & \text{Those who play only two games}=5+7+3=15 \\\end{align}$

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