What two numbers add up to 3949?

There are infinite combinations of two numbers that add up to 3949. Here are some examples using negative numbers:

-1 + 3950 = 3949
-2 + 3951 = 3949
-3 + 3952 = 3949
...

Here are some examples using two fractions that will add up to 3949:

3949/2 + 3949/2 = 3949
7898/3 + 3949/3 = 3949
11847/4 + 3949/4 = 3949
...

And here are some examples using two decimal numbers that will add up to 3949:

1.25 + 3947.75 = 3949
2.50 + 3946.5 = 3949
3.75 + 3945.25 = 3949
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 3949?", it may be more interesting to set some criteria to limit the result. We will set the follow criteria:

1) Only positive whole numbers can add up to 3949. (0 is not a positive or negative number and should not be included.)

2) Since a+b=29 is the same as b+a=29, we should only list it once.

Now, the answer to "What two numbers add up to 3949?" has 1974 answers:

1 + 3948 = 3949
2 + 3947 = 3949
3 + 3946 = 3949
.
.
1972 + 1977 = 3949
1973 + 1976 = 3949
1974 + 1975 = 3949

We have truncated the list above due to space, but you may be interested to know that we calculated the number of answers by dividing 3949 by 2 and then rounded down to the nearest whole number if necessary.

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