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National and Regional Contests
Vietnam Contests
Hanoi Open Mathematics Competition
2010 Hanoi Open Mathematics Competitions
1
1
Part of
2010 Hanoi Open Mathematics Competitions
Problems
(1)
compare 888...888 x333..333, 444...444x666...667 (HOMC 2010 J Q1)
Source:
7/25/2019
Compare the numbers: P = 888...888 \times 333 .. 333 (
2010
2010
2010
digits of
8
8
8
and
2010
2010
2010
digits of
3
3
3
) and
Q
=
444...444
×
666...6667
Q = 444...444\times 666...6667
Q
=
444...444
×
666...6667
(
2010
2010
2010
digits of
4
4
4
and
2009
2009
2009
digits of
6
6
6
)(A):
P
=
Q
P = Q
P
=
Q
, (B):
P
>
Q
P > Q
P
>
Q
, (C):
P
<
Q
P < Q
P
<
Q
.
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algebra