Question
Farmer Zane has 4 hens. The mass of Hen K is the same as the average mass of the 4 hens. Hen L weighs 3 kg less than the average mass of the 4 hens. The mass of Hen M is 9 kg more than the average mass of the 4 hens. The mass of Hen N is 6 kg. Find the total mass of the 4 hens.
3 m

Click button first when a symbol is required. X

Farmer Zane has 4 hens. The mass of Hen K is the same as the average mass of the 4 hens. Hen L weighs 3 kg less than the average mass of the 4 hens. The mass of Hen M is 9 kg more than the average mass of the 4 hens. The mass of Hen N is 6 kg. Find the total mass of the 4 hens.