The sum of two odd numbers never makes an odd number. Only the sum of an odd number and an even number makes an odd number.
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23, 25, 27, 29... add two forever.If you want a more mathematical notation, the nth odd number after 21 is2n + 21I don't know how else to say it, because there are infinite odd numbers above 21.
The difference is 2. (23 - 21 = 2).If we are talking about two odd numbers that come right after the number 20 then we mean the two consecutive odd numbers after 20.The difference between any consecutive odd numbers (or between any consecutive even numbers) is always 2.
9 & 23
6 9 11 23
Let's call the first odd number x. Since the numbers are consecutive, the second odd number would be x + 2. The sum of the two numbers is 44, so the equation would be x + (x + 2) = 44. Solving this equation yields x = 21, which means the two consecutive odd numbers are 21 and 23.