Usha swims in a 90 mlong pool .She cover 180 min one minute by swimming from one end to the other an

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  • Опубликовано: 29 авг 2024
  • #Usha swims in a 90 mlong pool .She cover 180 min one minute by swimming from one end to the other and back along the same straight path.Find the average velocity of Usha

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