Question
A box which contains 9 similar packets of oats and 7 similar packets of ground pepper has a mass of 11 kg 380 g. The box alone is 540 g. Each packet of oats has a mass of 520 g. Find the mass of each packet of ground pepper in kg.
3 m

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A box which contains 9 similar packets of oats and 7 similar packets of ground pepper has a mass of 11 kg 380 g. The box alone is 540 g. Each packet of oats has a mass of 520 g. Find the mass of each packet of ground pepper in kg.