Question
The total mass of 4 manuals and 4 dictionaries is 18 kg. Each manual weighs 4 kg 280 g more than each dictionary. What is the mass of 1 dictionary? Express the answer in grams.
4 m

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The total mass of 4 manuals and 4 dictionaries is 18 kg. Each manual weighs 4 kg 280 g more than each dictionary. What is the mass of 1 dictionary? Express the answer in grams.