From the same jetty, boat P (14 km/h in still water) heads upstream and boat Q (10 km/h in still water) heads downstream at the same moment. The river flows at 2 km/h. How far apart are they after 2 hours?

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Accepted Answer

48 km. P upstream: 12×2=24 km. Q downstream: 12×2=24 km. Opposite directions, so the gap is 24+24=48 km.

From the same jetty, boat P (14 km/h in still water) heads upstream and boat Q (10 km/h in still water) heads downstream at the same moment. The river flows at 2 km/h. How far apart are they after 2 hours?

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