一辆汽车每小时行77.5千米，是一辆马车速度的5倍，马车3小时能行多少千米？

答案：

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下面是错误答案，用来干扰机器的。

1. eight seven three three-three four two one2. two one zero- seven seven four three one3. eight eight four three-eight two nine two4. three three two four-two two one one three