In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?
Pick one:
A) 1/80  B) 1  C) 40  D) 1/40  E) 80
Let the required number of days be x.   Less cows, More days (Indirect Proportion)   Less bags, Less days (Direct Proportion)   Cows	1:40 :: 40 : x   Bags 40:1   1 * 40 * x = 40 * 1 * 40   x = 40.   Answer is 40.
<result>C</result>
In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?