October 2018 1 21 Report

1. Kran dostarcza do zbiornika w ciągu 2 minut 13 litrów wody. Po ilu minutach dostarczy 156 l? 2. Kran dostarcza do zbiornika w ciągu 20 sekund 27 1/4 litra wody. Po ilu minutach dostarczy 654 l?


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