Answer:
880 km
Explanation:
To get from 9 to 11, we multiply 9 by 11/9, so the same must be done to 720 km to get the amount in 11 hours. 720 * 11/9 is equal to 880, so the train travels 880 km in 11 hours.
The train would travel 880 km in 11 hours.
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