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Probability
Walking the Blank (
Posted on 20130819
)
Find the probability that if each of the digits 0, 1, 2, ..., 9 be placed exactly once in random order in the blank spaces of:
5_383_8_2_936_5_8_203_9_3_76
the resulting number will be divisible by 396.
No Solution Yet
Submitted by
K Sengupta
Rating:
3.5000
(2 votes)
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)
spoiler, hopefully
 Comment 1 of 4
ANS:
ZERO
The resulting number will be divisible by 36 (sod=90+45,
ends by..76), but cannot be divisible by 11,
since 73(17+45) is not 0 mod 11.
REM: unless I've erred in my hasty addition.
Anyway, why D3?
Posted by
Ady TZIDON
on 20130819 10:46:19
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