|
Effectiveness of Hand Wash
Bacteria such as V. cholerae are known to follow an exponential growth curve rate, and will double their number every 15 minutes. Fortunately, anti-bacterial
hand wash can kill 99.9% of bacteria on a surface. If a colony of 500 V. cholerae cells are left alone for 2 hours, then anti-bacterial handwash is applied thoroughly, how many bacterial cells are left?
A. 4 cells.
B. 64 cells.
C. 128 cells.
D. 256 cells.
E. 512 cells.
To see the solution and images, visit the following link:
http://datquestionoftheday.com/math/effectiveness-of-hand-wash/
|
