Question

Rad corpuscles of human blood stream are known to be flattened discs. Blood count shows `RBC_s` of sdhte order of `5xx10^6` in each cubic millimeter of blood. If the adult body contains 5 litres of blood, what is the order of total number of red corpuscles it contains?

Answer 1

Correct Answer - `10^(13)`
Number of `RBC_s in 1mm^3 = 5xx10^6`
Total volume fo blood = 5 litres
`5xx10^3xx10^3 mm^3`
Total number of `RBC_s = 5xx10^6xx5xx10^6`
`2.5xx10^(13) ~~10^(13)`