Answer:
Let's assume that the two parts of 25 are x and y.
From the problem, we know that one part is 13 less than the other. This can be expressed as:
x = y - 13
We also know that the sum of the two parts is 25:
x + y = 25
Now we can substitute x in terms of y from the first equation into the second equation:
(y - 13) + y = 25
Simplifying, we get:
2y - 13 = 25
Adding 13 to both sides, we get:
2y = 38
Dividing both sides by 2, we get:
y = 19
Now we can use the first equation to find x:
x = y - 13
x = 19 - 13
x = 6
Therefore, 25 can be separated into two parts, 6 and 19, such that one part is 13 less than the other.