Question
Farmer John has 4 ducks. The mass of Duck K is the same as the average mass of the 4 ducks. Duck L weighs 3 kg less than the average mass of the 4 ducks. The mass of Duck M is 6 kg more than the average mass of the 4 ducks. The mass of Duck N is 14 kg. Find the total mass of the 4 ducks.
3 m

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Farmer John has 4 ducks. The mass of Duck K is the same as the average mass of the 4 ducks. Duck L weighs 3 kg less than the average mass of the 4 ducks. The mass of Duck M is 6 kg more than the average mass of the 4 ducks. The mass of Duck N is 14 kg. Find the total mass of the 4 ducks.