TLS Online TPP Program

#Question id: 35790


If a 10-5 dilution yields 150 colonies when 0.1 mL is plated, what is the original concentration (CFU/mL) of the sample?

#XL - U Food Technology
  1. 1.5 × 105 CFU/mL
  2. 1.5 × 106 CFU/mL
  3. 1.5 × 107 CFU/mL
  4. 1.5 × 108 CFU/mL