Question
City U and City V is 564 km apart. At 08 20, Lucy, travelling at a constant speed, left City U for City V. At the same time, Luis set off from City V for City U at a constant speed which was 13 km/h faster than Lucy. Find Luis's speed if they met at 12 20.
3 m

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City U and City V is 564 km apart. At 08 20, Lucy, travelling at a constant speed, left City U for City V. At the same time, Luis set off from City V for City U at a constant speed which was 13 km/h faster than Lucy. Find Luis's speed if they met at 12 20.