The sum of the odd numbers between 0 and 50 is :

• A. 525
• B. 625
• C. 425
• D. 725

To find the sum of the odd numbers between 0 and 50, we first identify the odd numbers in this range: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49.

Counting the Odd Numbers

There are 25 odd numbers from 1 to 49. The formula for the sum of the first n odd numbers is:

Sum Formula

The sum can be calculated using the formula:

Sum = n²

where n is the number of odd numbers. In this case, n = 25.

Calculating the Sum

Now, we can calculate:

Sum = 25² = 625

Final Answer

Thus, the sum of the odd numbers between 0 and 50 is 625, which corresponds to option B.