Question
The total mass of 2 plates and 9 vases is 4.2 kg. The total mass of 1 plate and 2 vases is 1.1 kg. What is the mass of each vase?
4 m

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The total mass of 2 plates and 9 vases is 4.2 kg. The total mass of 1 plate and 2 vases is 1.1 kg. What is the mass of each vase?