Question
City P and City Q is 640 km apart. At 09 25, Emily, travelling at a constant speed, left City P for City Q. At the same time, Luke set off from City Q for City P at a constant speed which was 6 km/h faster than Emily. Find Luke's speed if they met at 14 25.
3 m

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City P and City Q is 640 km apart. At 09 25, Emily, travelling at a constant speed, left City P for City Q. At the same time, Luke set off from City Q for City P at a constant speed which was 6 km/h faster than Emily. Find Luke's speed if they met at 14 25.