Question

What two odd numbers sum up to exactly to 500,000?

Answer 1

Let x and y two numbers that

`x+y=500000`

The given condition is that x and y are odd numbers, the simplest example is x=1 and y=499999, this summed result is 500000.

Nevertheless, there are many different values for x and y, in general

y=500000-x is odd if and only if x is odd.