If a population of 50 Paramecium present in a pool increases to 150 after an hour, what would be the growth rate of population ?

Options

A. 50 per hour
B. 200 per hour
C. 5 per hour
D. 100 per hour

Explanation

To calculate the growth rate of the Paramecium population, we will follow these steps:

### Step 1: Identify the Initial and Final Population
- The initial population (ni) is given as 50 Paramecium.
- The final population (nt) after 1 hour is given as 150 Paramecium.

### Step 2: Calculate the Change in Population
- To find the change in population, we subtract the initial population from the final population:
\[ \text{Change in Population} = nt - ni = 150 - 50 = 100 \]
- This means that 100 Paramecium have been added to the population in 1 hour.

### Step 3: Determine the Growth Rate
- Since we are looking for the growth rate per hour, we can state that the growth rate is equal to the change in population over the time period (which is 1 hour in this case).
- Therefore, the growth rate of the population is:
\[ \text{Growth Rate} = \frac{\text{Change in Population}}{\text{Time}} = \frac{100}{1} = 100 \text{ Paramecium per hour} \]

### Final Answer
- The growth rate of the Paramecium population is **100 Paramecium per hour**.

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