Question
Albert and Opal left Town M for Town N at the same time. When Albert reached Town N in 6 hours, Opal had only completed 47 of the distance between the two towns. Opal's speed was 21 km/h slower than Albert. What was Albert's speed?
5 m

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Albert and Opal left Town M for Town N at the same time. When Albert reached Town N in 6 hours, Opal had only completed 47 of the distance between the two towns. Opal's speed was 21 km/h slower than Albert. What was Albert's speed?