On average, how much blood is traveling through the circulatory system at any given moment

as far as an average adult (with a body weight between 150 to 180 pounds) is concerned, the volume of blood can be between 4.7 to 5.5 liters. In case of a child with a body weight of 80 pounds, the volume of blood can be around half the amount of that of an adult and it will be around eight ounces in an eight pound infant.

answer; i believe the answer is moderate level;