Bluff - Logic behind magic number 9, Magic Number 9
Logic behind magic number 9Behind logic of Magic Number 9
Logic of this Magic
Take same Rule
1. Take an unrepeated same digit as a number. (don't take like this 2222, its make result as an infinity.)
2. Reverse that number.
3. Subtract the biggest to smallest number.
4. Now you can divide that result by 9.
(In rule 4 tells, the result exactly divide by 9, no reminders)
1. Take Two Digit Number, 10x+y ---- (A)
2. Reverse the number, 10y+x ---- (B)
3. Assume A number is Big, so that big - small,
(10x+y) - (10y+x) = 9x-9y = 9 (x-y)4. So it can divided by 9 without the reminders.
The topic on Bluff - Logic behind magic number 9 is posted by - Math
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