MathDB
Problems
Contests
National and Regional Contests
India Contests
Regional Mathematical Olympiad
2011 India Regional Mathematical Olympiad
4
4 digit numbers from {0,1,...,5} [RMO2-2011, India]
4 digit numbers from {0,1,...,5} [RMO2-2011, India]
Source:
December 31, 2011
Problem Statement
Find the number of 4-digit numbers with distinct digits chosen from the set
{
0
,
1
,
2
,
3
,
4
,
5
}
\{0,1,2,3,4,5\}
{
0
,
1
,
2
,
3
,
4
,
5
}
in which no two adjacent digits are even.
Back to Problems
View on AoPS