If Walt is leaving point A to go to point B, averaging 50 mph to cover 8.7 miles and Rob gets a wake up call that Walt has left for destination B, how long can Rob stay in bed assuming he can make it from bed to car in 3 min and will average 40 mph to cover the 2.2 miles between point C and destination B?
And you thought those problems would never come up in real life...
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