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?  Choose the most appropriate option
A) 1	B) 1/40	C) 40	D) 80	E) 1/80
Assume that in x days, one cow will eat one bag of husk.   More cows, less days (Indirect proportion)   More bags, more days (direct proportion)   Hence we can write as   40owsBags40:11:40⎫⎭⎬::x:40   ⇒40×1×40=1×40×x   ⇒x=40   ANSWER: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?