The time taken to finish a particular activity in a project, based on historical records is said to exhibit a normal distribution with a mean of 25 minutes and a variance of 0.49. Based on historical records, find the probability that this activity will be finished in the future project in:

1. Less than 25 minutes.

2. Greater than 25 minutes.

3. Between 25 minutes and 25.4 minutes.

4. Between 25.1 minutes and 25.6 minutes.

5. Between 24.8 minutes and 25.2 minutes.

6. Between 24.9 minutes and  25.4 minutes.