Question
City V and City W is 847 km apart. At 09 15, Sarah, travelling at a constant speed, left City V for City W. At the same time, Mark set off from City W for City V at a constant speed which was 13 km/h faster than Sarah. Find Mark's speed if they met at 16 15.
3 m

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City V and City W is 847 km apart. At 09 15, Sarah, travelling at a constant speed, left City V for City W. At the same time, Mark set off from City W for City V at a constant speed which was 13 km/h faster than Sarah. Find Mark's speed if they met at 16 15.