Explanation

x + y = 25 ... (1)

x - y = 13 ... (2)

Adding equations (1) and (2), we get:

2x = 38

x = 19

Substituting x into equation (1), we get:

19 + y = 25

y = 6

Now that we have the values of x and y, we can find their product:

Product = x × y = 19 × 6 = 114

So, the correct answer is: 114