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It takes Sameer 3 hours to swim 18 km downstream, and the same 3 hours to swim 12 km upstream. What is the speed of the current?

Competition practiceBoats & Streams
  • A1 km/h
  • B5 km/h
  • C2 km/h
  • D0.5 km/h

Step-by-Step Solution

Downstream = 6 km/h, upstream = 4 km/h. Current = km/h. (5 km/h is his still-water speed.)
Answer: A) 1 km/h

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