Puzzle:
Take a look at the following multiplication problem. Replace all "?" with digits 1, 2, 3, 4, 5 and 6 (use one digit only once) to make it true.
? ?
x ?
___
Digits 1 to 6
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Puzzle:
Take a look at the following multiplication problem. Replace all "?" with digits 1, 2, 3, 4, 5 and 6 (use one digit only once) to make it true.
4 comments:
54*3 = 162
54
x3
---
162
Lets say its
A B
x C
----
DEF
Now, neither B nor C can take the value 5 (since either 5 would be repeated or we'd get a 0). Only A or E can be 5 (because we cannot get DEF > 3xx neways)...
So lets say A = 5...
Now (B,C) cannot be (4,6) or (6,2), so lets try (4,3), and voila, we get the result...
54
*3
---
162
54
*3
---
162
---
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