Question
City M and City N is 763 km apart. At 08 55, Opal, travelling at a constant speed, left City M for City N. At the same time, Japheth set off from City N for City M at a constant speed which was 13 km/h faster than Opal. Find Japheth's speed if they met at 15 55.
3 m

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City M and City N is 763 km apart. At 08 55, Opal, travelling at a constant speed, left City M for City N. At the same time, Japheth set off from City N for City M at a constant speed which was 13 km/h faster than Opal. Find Japheth's speed if they met at 15 55.