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Nan Hua SA 2 paper 2 question 7

Town A and Town B is 760 km apart. At 9 a.m. Sam travelling at a constant speed, left Town A for Town B. At the same time, Rui En set off from Town B for Town A at a constant speed which was 9km/h faster than Sam. Find Rui En’s constant speed if they met at 5 p.m.

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