Answer:
The number of red blood cells is approximately 660 times greater than white blood cells (option A).
Explanation:
In adult humans the blood has about 4,5 to 6 million red blood cells per cubic millimeter (mm3), while the normal value of white blood cells is between 5,000 and 10,000 per mm3.
In this exercise, the given values are
-
Red blood cells 2.6x10⁶/mm³ = 2.600.000 x mm³
.
- White blood cells s 3.92x10³/mm³ = 3.920 x mm³.
To know how many times there are more red blood cells than white blood cells in this sample, only have to divide the amount of the former between the second:
2.600.000 / 3.920 = 663,27 ≈ 660
For given cell values, the number of red blood cells is about 600 times greater than white blood cells.
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