What two numbers add up to 7805?

There are infinite combinations of two numbers that add up to 7805. Here are some examples using negative numbers:

-1 + 7806 = 7805
-2 + 7807 = 7805
-3 + 7808 = 7805
...

Here are some examples using two fractions that will add up to 7805:

7805/2 + 7805/2 = 7805
15610/3 + 7805/3 = 7805
23415/4 + 7805/4 = 7805
...

And here are some examples using two decimal numbers that will add up to 7805:

1.25 + 7803.75 = 7805
2.50 + 7802.5 = 7805
3.75 + 7801.25 = 7805
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 7805?", 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 7805. (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 7805?" has 3902 answers:

1 + 7804 = 7805
2 + 7803 = 7805
3 + 7802 = 7805
.
.
3900 + 3905 = 7805
3901 + 3904 = 7805
3902 + 3903 = 7805

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 7805 by 2 and then rounded down to the nearest whole number if necessary.

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