11 increased by 12 is the same as 11 plus 12 so the answer is 23
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It would seem to be 11. ------------------------------------- Here are a couple of ways to justify the answer "11": #1: 2 -> 6 is an increase of 4. 6 -> 3 is a decrease of 3. 3 -> 8 is an increase of 5. 8 -> 6 is a decrease of 2. 6 -> 12 is an increase of 6. 12 -> 11 is a decrease of 1. #2: 2 -> 3 is an (odd) increase of 1. 6 -> 8 is an (even) increase of 2. 3 -> 6 is an (odd) increase of 3. 8 -> 12 is an (even) increase of 4. 6 -> 11 is an (odd) increase of 5.
If 8 is increased to 12, the increase is what percentage of the original number?
How to increase 300 by 11%
The reciprocal of 12/11 is 11/12.
11, as 11-12-(-12) is the same as 11 + (-12+12), and -12 +12 cancels out to zero, leaving you with 11 + 0 = 11.