FARM ARITHMETIC PEOBLEMS 87 



stalks per acre. If by careful selection of seed corn 

 each stalk can be made to bear an average of one 

 ounce more of corn, what will be the increase in 

 yield per acre? What will be the increase in cash 

 return on 70 acres, if the corn is 40 cents per bushel ? 



5. Eight pounds of seed corn will plant an acre. 

 How many bushels would it take to plant 70 acres f 



6. If a man put in a day on the selection of each 

 bushel of corn, what would be the cost of selecting 

 seed for 70 acres, counting his time at $2 per day? 

 How much per acre? 



7. If by such selection he can increase the yield of 

 his corn 5 bushels per acre, and corn is worth 40 cents 

 per bushel, what will be the increase in value on 70 

 acres of corn ? How much per acre ? 



Dairy Problems 



[n working out these problems, have the pupils get 

 prices on feed by inquiring of the local dealers. It 

 might be well, too, to keep the market quotations on 

 feed and farm crops posted on the blackboard and 

 changed weekly. If possible demonstrate the use of 

 the Babcock milk tester. Have pupils actually test 

 milk. A Babcock tester can be secured complete for 

 $5.00. 



1. A good ration for a dairy cow is 10 bushels of 

 corn and 10 bushels of oats ground together, and one 



