Question
City S and City T is 684 km apart. At 09 25, Natalie, travelling at a constant speed, left City S for City T. At the same time, Sean set off from City T for City S at a constant speed which was 9 km/h faster than Natalie. Find Sean's speed if they met at 13 25.
3 m

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City S and City T is 684 km apart. At 09 25, Natalie, travelling at a constant speed, left City S for City T. At the same time, Sean set off from City T for City S at a constant speed which was 9 km/h faster than Natalie. Find Sean's speed if they met at 13 25.