
Answer:
John received 10% of the overall votes.
Step-by-step explanation:
Let us assume that the number of votes John got  = m
So, the number of votes Vivienne received = Â 3 times (John's share )
 = 3  times m  =  3 m
Also, The number of Votes Nassim received = 2 times ( Vivienne's share)
2 x (3 m) Â = 6 m
Total Votes in the grade 6 Â
= Votes received by { John + Vivienne + Nassim}
= m + (3 m) + (6 m) = 10 m
Hence, the total number of students who voted in grade 6 Â = 10 m
[tex]\textrm{The percentage of John's Votes } Â = \frac{\textrm{Number of votes John received}}{\textrm{Total number of votes }} Â \times 100[/tex]
= [tex]\frac{m}{10m} Â \times 100 = 10[/tex]
or, The percentage of John's Votes  = 10%
Hence, John received 10% of the overall votes.