Question
City W and City X is 720 km apart. At 08 10, Barbara, travelling at a constant speed, left City W for City X. At the same time, Vincent set off from City X for City W at a constant speed which was 12 km/h faster than Barbara. Find Vincent's speed if they met at 12 10.
3 m

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City W and City X is 720 km apart. At 08 10, Barbara, travelling at a constant speed, left City W for City X. At the same time, Vincent set off from City X for City W at a constant speed which was 12 km/h faster than Barbara. Find Vincent's speed if they met at 12 10.