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5
Q5 - Hanoi Open Mathematical Olympiad 2012 - Junior Section
Q5 - Hanoi Open Mathematical Olympiad 2012 - Junior Section
Source:
June 10, 2012
Problem Statement
Q5. How many different 4-digit even integers can be form from the elements of the set
{
1
,
2
,
3
,
4
,
5
}
.
\{ 1,2,3,4,5 \}.
{
1
,
2
,
3
,
4
,
5
}
.
(
A
)
4
;
(
B
)
5
;
(
C
)
8
;
(
D
)
9
;
(
E
)
None of the above.
(A) \; 4; \qquad (B) \; 5; \qquad (C ) \; 8; \qquad (D) \; 9; \qquad (E) \; \text{None of the above.}
(
A
)
4
;
(
B
)
5
;
(
C
)
8
;
(
D
)
9
;
(
E
)
None of the above.
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