Question

what is the speed of blood in human being ?? ​

Answer 1

Answer:

The heart beats 2.5 billion times in a lifetime. The 5 quarts of blood an adult male continually pumps (4 quarts for women) flow at an average speed of 3 to 4 mph — walking speed. That's fast enough so that a drug injected into an arm reaches the brain in only a few seconds. But this blood speed is just an average.

Answer 2

According to this page "The heart pumps about 2,000 gallons (7,571 liters) of blood a day through its chambers." 2,000 gallons per day works out to 83 gallons per hour, or nearly 6 quarts per minute. So it takes about one minute for blood to make the round trip to the heart.