Asked by mariana

Billy chooses three dfferent non-zero digits and makes six different 3-digit numbers with no digit repeated in any number. He notices that one of the 3-digit nubers N say is the aerage of the other five. Find all possible values of N.
Answered by Leo Galleguillos
Three different non-zero digits: a, b, c

Hint: How many different 3-digit numbers can you make with only a, b, and c?
Answered by thelloe
pls hepl me
Answered by iraiven
6
that is 3 factorial
a b c
a c b
b a c
b c a
c a b
c b a
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