In a dairy farm, 20 cows eat 10 bags of husk in 40 days. In how many days one cow will eat one bag of husk?	Select the correct option:	A) 20	B) 40	C) 80	D) 30	E) 60
One cow eats 10/20= 
<gadget id="calculator">10/20</gadget>
<output>1/2 = around 0.5</output>
0.5 bags of husk in 40 days. Then, it eats 1 bag in   40/0.5= 
<gadget id="calculator">  40/0.5</gadget>
<output>80</output>
80 days   Answer: 80
<result>C</result>
In a dairy farm, 20 cows eat 10 bags of husk in 40 days. In how many days one cow will eat one bag of husk?