FARM ARITHMETIC PROBLEMS 83 



of 10 hours each, (a) If the binder cost $120 and 

 simple interest on the investment is allowed at 6 per 

 cent, what is the cost of one hour's work of the 

 binder? (b) If by carelessness in handling and the 

 leaving out of doors when not in use, the life of the 

 binder is reduced from 12 years to 4 years (4 years is 

 the average life of the binder), what is the cost per 

 hour of its use ? 



8. A crib of corn is weighed in, in Xovember, as 

 67,200 pounds. How many bushels would this be ? 



9. How many feet deep would it fill a crib 10 feet 

 wide and 32 feet long? 



10. Allowing that the shrinkage on ear corn is 3 

 per cent a month of the original amount for six 

 months from Xovember on, what would this crib of 

 corn weigh out next June? 



11. If the corn can be sold at gathering time for 

 50 cents a bushel, would it pay better to sell it then 

 or hold it till next June and sell it for 60 cents, 

 allowing 3 per cent shrink a month for 6 months ? 



12. A quarter-section farm is divided up as fol- 

 lows: Corn land, 80 acres; oats, 20 acres; hay land, 

 30 acres; pasture, 20 acres; orchard, 5 acres; waste 

 land, lots, buildings, etc., 5 acres. Draw a sketch of 

 this farm as you would lay it out. 



13. The corn grown filled 4 16-foot sections of 

 crib 12 feet wide and 10 feet deep. The oats filled a 

 bin 10 feet wide, 12 feet long, and 11 feet deep. The 

 hay filled a mow 30 feet wide, 100 feet long, and 15 



