78 



FARM ARITHMETIC. 



196. In 50 pounds of butter, how much butter fat? 

 Other matter ? 



197. A certain cow last year yielded 5,000 pounds of 

 milk that tested 5.4 per cent butter fat. At 25 cents per 

 pound, what was the value of the butter she produced ? 



Process : 



5,000 X -054 = 270 

 270 X 1-6 = 45 



Butter produced 270 -f 45 = 315 pounds. 

 315 at 25 cents = $78.75 value of butter. 



CHURNING IN THE OLDEN DAYS. 



Such primitive methods are seldom seen in these days. Modern churns have 

 driven these hand methods largely into oblivion. 



198. The owner of this cow had another that yielded 

 3,850 pounds of milk, which tested 4.8 per cent fat. What 

 was the value of the butter this one produced at 25 cents 

 per pound ? 



199. Another cow in this herd yielded 4,300 pounds 

 of milk that tested 3 per cent butter fat. At 25 cents per 

 pound what was the value of the butter produced? 



