Question
City L and City M is 672 km apart. At 07 45, Abi, travelling at a constant speed, left City L for City M. At the same time, Japheth set off from City M for City L at a constant speed which was 10 km/h faster than Abi. Find Japheth's speed if they met at 13 45.
3 m

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City L and City M is 672 km apart. At 07 45, Abi, travelling at a constant speed, left City L for City M. At the same time, Japheth set off from City M for City L at a constant speed which was 10 km/h faster than Abi. Find Japheth's speed if they met at 13 45.