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Not all a's are in (
Posted on 2018-02-06
)
A four-digit PIN number
aabb
, where
a
and
b
are distinct digits, is a multiple of
15.
Which values of
a
are not possible?
See The Solution
Submitted by
Ady TZIDON
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Puzzle Answer
Comment 4 of 4 |
The required distinct values of a are:
8, 5 , 2, 0
*** I sincerely hope to posit a suitable explanation to this in future.
Posted by
K Sengupta
on 2022-06-01 23:04:36
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