Question
Japheth and Vanessa left Town N for Town P at the same time. When Japheth reached Town P in 4 hours, Vanessa had only completed 47 of the distance between the two towns. Vanessa's speed was 21 km/h slower than Japheth. What was Japheth's speed?
5 m

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Japheth and Vanessa left Town N for Town P at the same time. When Japheth reached Town P in 4 hours, Vanessa had only completed 47 of the distance between the two towns. Vanessa's speed was 21 km/h slower than Japheth. What was Japheth's speed?