September 2018 1 21 Report
W stopie wazacym 2 kg. jest 1600 gramow czystego srebra.
a) Ile srebra byloby w stopie tej samej proby wazacym: 20 dag, 0,5 kg. 5 kg. 20 kg.
b) Ile wazylby stop tej samej proby gdyby byloby w nim: 20 dag, 0,5 kg, 5 kg, 20 kg czystego srebra?
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