Question: What is the average of the first five decimal fractions?

Options:

1. 0.1
2. 0.2
3. 0.3
4. 0.4

Correct Answer: 0.2

Solution:

The first five decimal fractions are 0.1, 0.2, 0.3, 0.4, 0.5. Average = (0.1 + 0.2 + 0.3 + 0.4 + 0.5) / 5 = 0.3.