What two numbers add up to 495?

There are infinite combinations of two numbers that add up to 495. Here are some examples using negative numbers:

-1 + 496 = 495
-2 + 497 = 495
-3 + 498 = 495
...

Here are some examples using two fractions that will add up to 495:

495/2 + 495/2 = 495
990/3 + 495/3 = 495
1485/4 + 495/4 = 495
...

And here are some examples using two decimal numbers that will add up to 495:

1.25 + 493.75 = 495
2.50 + 492.5 = 495
3.75 + 491.25 = 495
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 495?", 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 495. (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 495?" has 247 answers:

1 + 494 = 495
2 + 493 = 495
3 + 492 = 495
.
.
245 + 250 = 495
246 + 249 = 495
247 + 248 = 495

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

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What two numbers add up to 496?
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