Question
Three pitchers, A, B and C, contain a total of 12.9 ℓ of water. Pitcher A contains 1.8 ℓ of water more than Pitcher B. Pitcher B contains 1.8 ℓ of water more than Pitcher C. What is the volume of water in Pitcher B?
3 m

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Three pitchers, A, B and C, contain a total of 12.9 ℓ of water. Pitcher A contains 1.8 ℓ of water more than Pitcher B. Pitcher B contains 1.8 ℓ of water more than Pitcher C. What is the volume of water in Pitcher B?