Question
City C and City D is 834 km apart. At 09 10, Betty, travelling at a constant speed, left City C for City D. At the same time, Andy set off from City D for City C at a constant speed which was 15 km/h faster than Betty. Find Andy's speed if they met at 15 10.
3 m

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City C and City D is 834 km apart. At 09 10, Betty, travelling at a constant speed, left City C for City D. At the same time, Andy set off from City D for City C at a constant speed which was 15 km/h faster than Betty. Find Andy's speed if they met at 15 10.