Question
Three pitchers, K, L and M, contain a total of 12.5 ℓ of water. Pitcher K contains 1.2 ℓ of water more than Pitcher L. Pitcher L contains 3.1 ℓ of water more than Pitcher M. What is the volume of water in Pitcher L?
3 m

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Three pitchers, K, L and M, contain a total of 12.5 ℓ of water. Pitcher K contains 1.2 ℓ of water more than Pitcher L. Pitcher L contains 3.1 ℓ of water more than Pitcher M. What is the volume of water in Pitcher L?