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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EllPacy
Thu, 06/14/2018 - 04:55
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