Wth???
- Thread starter Michael
- Start date
Greebo
N9017H - C172M (1976)
- Joined
- Feb 11, 2005
- Messages
- 10,976
- Location
- Baltimore, MD
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Display name:
Retired Evil Overlord
For any two digit number starting with the same first digit, that number minus the sum of its digits will always equal the same number.
99: 9+9 = 18 : 99-18 = 81
97: 9+7 = 16 : 97-16 = 81
94: 9+4 = 13 : 94-13 = 81
93: 9+3 = 12 : 93-12 = 81
90: 9+0 = 09 : 90-09 = 81
89: 8+9 = 17 : 89-17 = 72
..
and so on
So for every 2 digit number there are only 10 possible answers, one in the 80s, 1 in the 70s, 1 in the 60s, etc.
So the system picks the symbol to use, "randomly" assigns that symbol to all POSSIBLE answers (if you do the math right), adds it a few more places, and then you are fooled into thinking its special.
99: 9+9 = 18 : 99-18 = 81
97: 9+7 = 16 : 97-16 = 81
94: 9+4 = 13 : 94-13 = 81
93: 9+3 = 12 : 93-12 = 81
90: 9+0 = 09 : 90-09 = 81
89: 8+9 = 17 : 89-17 = 72
..
and so on
So for every 2 digit number there are only 10 possible answers, one in the 80s, 1 in the 70s, 1 in the 60s, etc.
So the system picks the symbol to use, "randomly" assigns that symbol to all POSSIBLE answers (if you do the math right), adds it a few more places, and then you are fooled into thinking its special.
TDKendall
Pre-takeoff checklist
Took 10 "attempts" before it came up with the snowflake I was concentrating on!
walterman
Filing Flight Plan
Heh - I wouldn't advertise that! The math won't make a mistake.