Question
City Y and City Z is 636 km apart. At 07 35, Wendy, travelling at a constant speed, left City Y for City Z. At the same time, Luis set off from City Z for City Y at a constant speed which was 15 km/h faster than Wendy. Find Luis's speed if they met at 11 35.
3 m

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City Y and City Z is 636 km apart. At 07 35, Wendy, travelling at a constant speed, left City Y for City Z. At the same time, Luis set off from City Z for City Y at a constant speed which was 15 km/h faster than Wendy. Find Luis's speed if they met at 11 35.