Question
City B and City C is 840 km apart. At 08 30, Gabby, travelling at a constant speed, left City B for City C. At the same time, Japheth set off from City C for City B at a constant speed which was 8 km/h faster than Gabby. Find Japheth's speed if they met at 13 30.
3 m

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City B and City C is 840 km apart. At 08 30, Gabby, travelling at a constant speed, left City B for City C. At the same time, Japheth set off from City C for City B at a constant speed which was 8 km/h faster than Gabby. Find Japheth's speed if they met at 13 30.