Question
City G and City H is 790 km apart. At 07 30, Emma, travelling at a constant speed, left City G for City H. At the same time, Riordan set off from City H for City G at a constant speed which was 6 km/h faster than Emma. Find Riordan's speed if they met at 12 30.
3 m

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City G and City H is 790 km apart. At 07 30, Emma, travelling at a constant speed, left City G for City H. At the same time, Riordan set off from City H for City G at a constant speed which was 6 km/h faster than Emma. Find Riordan's speed if they met at 12 30.