Question
City Q and City R is 552 km apart. At 08 20, Risa, travelling at a constant speed, left City Q for City R. At the same time, Oscar set off from City R for City Q at a constant speed which was 6 km/h faster than Risa. Find Oscar's speed if they met at 12 20.
3 m

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City Q and City R is 552 km apart. At 08 20, Risa, travelling at a constant speed, left City Q for City R. At the same time, Oscar set off from City R for City Q at a constant speed which was 6 km/h faster than Risa. Find Oscar's speed if they met at 12 20.