Alligation Question Example

by chante
(suffolk, va)

An order requires 800mL of 1.5% drug 'AA' solution. The Pharmacy stocks 15mL ampules of 80% drug 'AA' solution, which you'll dilute with D5NS. How many ampules of the 80% solution will you need to open?
A. ONE (1)
B. TWO (2)
C. THREE (3)
D. FOUR (4)

Here's how to do this one
(by Keith)