Question
A box which contains 7 similar packets of peppercorns and 3 similar packets of ground pepper has a mass of 6 kg 140 g. The box alone is 380 g. Each packet of peppercorns has a mass of 600 g. Find the mass of each packet of ground pepper in kg.
3 m

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A box which contains 7 similar packets of peppercorns and 3 similar packets of ground pepper has a mass of 6 kg 140 g. The box alone is 380 g. Each packet of peppercorns has a mass of 600 g. Find the mass of each packet of ground pepper in kg.