To calculate the total points that Charles de Vendeville earned in the underwater swimming event, we can use the scoring system provided:
- Points for time underwater: \(2\) points for each second.
- Points for distance traveled: \(1\) point for each meter.
Charles stayed underwater for \(68.4\) seconds and traveled \(60.2\) meters.
Now we can calculate the points:
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Points from time underwater: \[ \text{Points from time} = 2 \times 68.4 = 136.8 \]
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Points from distance traveled: \[ \text{Points from distance} = 1 \times 60.2 = 60.2 \]
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Total points: \[ \text{Total points} = \text{Points from time} + \text{Points from distance} = 136.8 + 60.2 = 197.0 \]
Therefore, Charles de Vendeville earned a total of 197.0 points.