Question
City P and City Q is 846 km apart. At 06 30, Tiffany, travelling at a constant speed, left City P for City Q. At the same time, Oscar set off from City Q for City P at a constant speed which was 9 km/h faster than Tiffany. Find Oscar's speed if they met at 12 30.
3 m

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City P and City Q is 846 km apart. At 06 30, Tiffany, travelling at a constant speed, left City P for City Q. At the same time, Oscar set off from City Q for City P at a constant speed which was 9 km/h faster than Tiffany. Find Oscar's speed if they met at 12 30.