If .1ml of serum, 5ml of reagent and 4.9ml of distilled water are mixed together what is the dilution of the serum in the final solution

Answer 1

From 0.1 mL to (0.1+5+4.9) = 0.1 to 10 or the dilution factor is 10/0.1 = 100

Answer 2

1:100