Understanding the problem:
We are given that a culture of bacteria multiplies 10 times in two hours. We need to determine the generation time of this bacteria culture.

What is generation time?
Generation time is the time it takes for a population of bacteria to double in size. It is a measure of the growth rate of bacteria.

Calculating generation time:
To calculate the generation time, we can use the following formula:

Generation time (in minutes) = Time taken / Number of generations

Given information:
- The bacteria culture multiplies 10 times in two hours.
- We need to find the generation time in minutes.

Solution:
Step 1: Convert two hours into minutes
- Since there are 60 minutes in an hour, two hours would be 2 * 60 = 120 minutes.

Step 2: Calculate the number of generations
- The bacteria culture multiplies 10 times in two hours, meaning it goes through 10 generations.
- Therefore, the number of generations is 10.

Step 3: Calculate the generation time
- Using the formula mentioned earlier, we can calculate the generation time as follows:
Generation time (in minutes) = Time taken / Number of generations
Generation time = 120 minutes / 10 generations

Step 4: Simplify the calculation
- Dividing 120 minutes by 10 generations gives us a generation time of 12 minutes.

Answer:
The generation time of the given bacteria culture is 12 minutes.