A River Has a Steady Speed of 0

question 49

Multiple Choice

A river has a steady speed of 0.30 m/s. A student swims downstream a distance of 1.2 km and returns to the starting point. If the student swims with respect to the water at a constant speed and the downstream portion of the swim requires 20 minutes, how much time is required for the entire swim?

• A) 50 minutes
• B) 80 minutes
• C) 90 minutes
• D) 70 minutes
• E) 60 minutes

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