Question
City R and City S is 668 km apart. At 09 50, Kimberly, travelling at a constant speed, left City R for City S. At the same time, Carl set off from City S for City R at a constant speed which was 15 km/h faster than Kimberly. Find Carl's speed if they met at 13 50.
3 m

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City R and City S is 668 km apart. At 09 50, Kimberly, travelling at a constant speed, left City R for City S. At the same time, Carl set off from City S for City R at a constant speed which was 15 km/h faster than Kimberly. Find Carl's speed if they met at 13 50.