Question
Emily and Rael started biking at 8.50 a.m. along 12-km trail. Emily took 30 minutes to reach the finishing point. Rael’s speed was 15 km/h slower than Emily’s. At what time did Rael reach the finishing point?
3 m

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Emily and Rael started biking at 8.50 a.m. along 12-km trail. Emily took 30 minutes to reach the finishing point. Rael’s speed was 15 km/h slower than Emily’s. At what time did Rael reach the finishing point?