An issue of magazine contained the following statement. Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. One days discharge as its mouth, 4.5 trillion could supply all of country A's household for 5 months. Based on this statement, determine how much water an average household uses each month. Assume there are 100 million households in country A. Country A uses ____ gallons per household per month.

Question