Question
Three pails contain an average of 50 ℓ of liquid detergent. The 1st pail contains 54 ℓ of liquid detergent and the 2nd pail contains 12 ℓ more liquid detergent than the 1st pail. How much liquid detergent does the 3rd pail contain?
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Three pails contain an average of 50 ℓ of liquid detergent. The 1st pail contains 54 ℓ of liquid detergent and the 2nd pail contains 12 ℓ more liquid detergent than the 1st pail. How much liquid detergent does the 3rd pail contain?