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Автор - tigranavetisyan96

Лодка за 2часа против течения проплыла 30 км а за 4 часа по течению 100 км. за сколько часов может проплыть лодка расстоянии 30 км

Ответ

Автор - 33255

1)100:4=25

2)125:30=4ч5мин.

как то так ,но проверь

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