Question
Risa took 1 h 10 min to travel from Town L to Town M. If she reached Town M at 6.40 a.m., at what time did she start from Town L?
2 m

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Risa took 1 h 10 min to travel from Town L to Town M. If she reached Town M at 6.40 a.m., at what time did she start from Town L?