Question
City E and City F is 635 km apart. At 09 50, Shiyun, travelling at a constant speed, left City E for City F. At the same time, Archie set off from City F for City E at a constant speed which was 13 km/h faster than Shiyun. Find Archie's speed if they met at 14 50.
3 m

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City E and City F is 635 km apart. At 09 50, Shiyun, travelling at a constant speed, left City E for City F. At the same time, Archie set off from City F for City E at a constant speed which was 13 km/h faster than Shiyun. Find Archie's speed if they met at 14 50.