Question
Farmer Dylan has 4 ducks. The mass of Duck F is the same as the average mass of the 4 ducks. Duck G weighs 2 kg less than the average mass of the 4 ducks. The mass of Duck H is 5 kg more than the average mass of the 4 ducks. The mass of Duck J is 12 kg. Find the total mass of the 4 ducks.
3 m

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Farmer Dylan has 4 ducks. The mass of Duck F is the same as the average mass of the 4 ducks. Duck G weighs 2 kg less than the average mass of the 4 ducks. The mass of Duck H is 5 kg more than the average mass of the 4 ducks. The mass of Duck J is 12 kg. Find the total mass of the 4 ducks.