Question
City S and City T is 564 km apart. At 08 40, Nicole, travelling at a constant speed, left City S for City T. At the same time, Luis set off from City T for City S at a constant speed which was 5 km/h faster than Nicole. Find Luis's speed if they met at 12 40.
3 m

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City S and City T is 564 km apart. At 08 40, Nicole, travelling at a constant speed, left City S for City T. At the same time, Luis set off from City T for City S at a constant speed which was 5 km/h faster than Nicole. Find Luis's speed if they met at 12 40.