The average of first 124 even numbers is

Correct option is B

Given:

We need to find the average of the first 124 even numbers.

Formula Used:
The average of an arithmetic sequence can be calculated as:

Average = $$\frac{\text{First term} + \text{Last term}}{2}$$​

Solution:

The first even number is 2, the second even number is 4, and so on. The n-th even number is given by:

Even number = 2n

So, the first 124 even numbers are:

2, 4, 6$$, \ldots, 2 \times 124 = 248$$​

First term = 2

Last term = 248

Thus, the average is:

Average =$$\frac{2 + 248}{2} = \frac{250}{2}$$​ = 125
The average of the first 124 even numbers is 125.