[meenu]

You have 1.50 ml of a urine specimen. The assay you are about to perform requires a 1/25 dilution of this specimen. How much water must be added to the specimen to achieve this dilution
 
im doing like , im not sure
ratio is 1 : 25
so  1.50 ml * 25 = 37.5 ml
water added = 37.5 - 1.5  

[enahs]

Why the sad face, it is correct.