Question
City B and City C is 550 km apart. At 07 20, Emma, travelling at a constant speed, left City B for City C. At the same time, Glen set off from City C for City B at a constant speed which was 12 km/h faster than Emma. Find Glen's speed if they met at 12 20.
3 m

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City B and City C is 550 km apart. At 07 20, Emma, travelling at a constant speed, left City B for City C. At the same time, Glen set off from City C for City B at a constant speed which was 12 km/h faster than Emma. Find Glen's speed if they met at 12 20.