Some puzzles goes as follows: Solve AB×B×A=BBB, where different letters denote different numbers and A and B are not zero.
What is the name for these types of puzzles?
Edit. I fixed my mistake in the puzzle, now it has solution.
$\begingroup$
$\endgroup$
2
-
2$\begingroup$ Incidentally, that particular puzzle has no solution. $\endgroup$ – dan04 Nov 24 '19 at 20:19
-
1$\begingroup$ @dan04, thank you for comment, i have fixed the puzzle. $\endgroup$ – Nick Nov 24 '19 at 23:49
Add a comment
|
$\begingroup$
$\endgroup$
This is a type of puzzle called a "cryptarithm" or an "alphametic". We have many examples of this type of puzzle under the alphametic tag.
$\begingroup$
$\endgroup$
1
(And for completeness, the answer)
A=3, B=7. This is because BBB is divisible by 111, so we must have either 37 or 74 in any factorisation of BBB (37 is prime) into 1 or 2 digit numbers. Trying both, only AB=37 works.
-
3$\begingroup$ The solution can be even simpler - first divide by B (since it's nonzero) to get AB*A=111, and the only factorisation of 111 is 37*3. $\endgroup$ – trolley813 Nov 25 '19 at 8:56
