Based on the number of points that the competitor had in total and the number of games available as well as the points per game, the maximum number of silver medals she could have won is A. 4.
The number of silver medals that the competitor could have won should be such that when the points from those silver medals are added up to the points from any other medals, the points can add up to 27 points exactly.
Assuming the competitor won 4 silver medals then the total points for silver are:
= 3 x 4
= 12 points
The number of points left are:
= 27 - 12
= 15 points
Are there 4 other medals (4 games left) where she could have won a total of 15 points?
Yes there are.
She could have won 3 gold medals, and no medal on one event. This would give a total point tally of:
= (5 x 3 golds) + (4 x 3 silvers) + (0 x 1 event)
= 27 points
The maximum the competitor could have gotten is therefore 4 silver medals.
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