genesis14121 genesis14121
  • 09-01-2024
  • Physics
contestada

A boat moves upstream at the rate of 1 km in 25 minutes and downstream 1 km in 12 minutes. The speed of the current is:
a. 13 km/h
b. 15 km/h
c. 18 km/h
d. 20 km/h

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