Question
Three buckets contain an average of 50 ℓ of dettol. The 1st bucket contains 54 ℓ of dettol and the 2nd bucket contains 11 ℓ more dettol than the 1st bucket. How much dettol does the 3rd bucket contain?
2 m

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Three buckets contain an average of 50 ℓ of dettol. The 1st bucket contains 54 ℓ of dettol and the 2nd bucket contains 11 ℓ more dettol than the 1st bucket. How much dettol does the 3rd bucket contain?