In a dairy farm, 45 cows eat 45 bags of husk in 45 days. In how many days one cow will eat one bag of husk ?	Choose the correct choice from the following answers:	A) 34 days	B) 45 days	C) 46 days	D) 50 days	E) none of these

Rationale: "explanation : less cows , more days ( indirect proportion ) less bags , less days ( direct proportion ) [ cows 1 45 bags 45 1 ] : : 45 : x = > x ∗ 45 ∗ 1 = 45 ∗ 1 ∗ 45 = > x = 45 option b"
Answer: B