The number of red blood cells per cubic millimetre of blood is approxi

1.	The number of red blood cells per cubic millimetre of blood is approximately 5.5 million. If the average body contains 5 litres of blood, what is the total number of red cells in the body? Write the standard form. (1 litre = 1,00,000 mm3).
Answer» The average body contain 5 L of blood. Also, the number of red blood cells per cubic millimetre of blood is approximately 5.5 million. Blood contained by body = 5 L = 5 x 100000 mm³ Red blood cells = 5 x 100000 mm³ Blood = 5.5 x 1000000 x 5 x 100000 = 55 x 5 x 10^{5 + 5} = 275 x 10¹⁰ = 2.75 x 10¹⁰ x 10² = 2.75 x 10¹²

The number of red blood cells per cubic millimetre of blood is approximately 5.5 million. If the average body contains 5 litres of blood, what is the total number of red cells in the body? Write the standard form. (1 litre = 1,00,000 mm3).

Answer»

The average body contain 5 L of blood.

Also, the number of red blood cells per cubic millimetre of blood is approximately 5.5 million.

Blood contained by body = 5 L = 5 x 100000 mm³

Red blood cells = 5 x 100000 mm³

Blood = 5.5 x 1000000 x 5 x 100000

= 55 x 5 x 10^{5 + 5}

= 275 x 10¹⁰

= 2.75 x 10¹⁰ x 10²

= 2.75 x 10¹²