Afruza2011 Afruza2011
  • 30-04-2024
  • Mathematics
Answered

моторная лодка двигалась 7 ч по течению реки и 4 часа против течения реки. за все это время лодка прошла 163 км. найти собственную скорость лодки, если скорость течения реки 3 км/ч



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