MISCELLANEOUS PROPLEMS. 247 



26. A neighbor feeds his horses of the same weight 

 10 pounds of hay and 14 pounds of oats each day. What 

 does his horse feed cost per day per horse if hay is 

 worth $18 a ton and oats 56 cents a bushel ? 



27. Another neighbor, with similar horses, uses 10 

 pounds of hay, 9 pounds of corn, and 2 pounds of oil 

 meal. If corn is worth 65 cents a bushel and oil meal 

 $30 a ton, what is the cost per day for feeding a horse 

 on this neighbor's farm? 



28. Compare the digestible nutrients of the two rations 

 suggested in Problems 26 and 27. Which is the cheaper 

 ration and what is the difference in cents? 



29. Suppose 10 horses are kept on a farm, what is the 

 difference in dollars between the two rations? 



30. Two neighbors are dairy farmers. Each has 4.0 

 cows in his herd. Dairyman A feeds daily 8 months the 

 following ration to his cows : 58 pounds of silage, 6.8 

 pounds of mixed hay. 2 pounds of oil meal, and 2 pounds 

 of wheat bran. Dairyman B feeds the following ration : 

 4,7 pounds of corn stover, 6.4 pounds of mixed hay, 2.5 

 pounds of oil meal, 5 pounds of corn meal, and 6 pounds 

 of bran. The feeds are worth at each farm the follow- 

 ing prices : Corn silage, $2 a ton ; corn stover, $6 a ton ; 

 mixed hay, $12; linseed oil, $34; wheat bran, $34; and 

 corn, $30. Determine the daily cost of the two rations. 

 The difference in dollars for 40 cows covering the 8 

 months or 240-day feeding period. 



31. The 10 cows on this farm are known as good but- 

 ter cows. The average per cent of butter fat for the en- 

 tire herd is 5.2 per cent. They yield 220 pounds of milk 

 on an average each day of the year. What is the aver- 

 age daily production of butter fat in pounds? This is 

 equivalent to how many pounds of butter? 



