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Mexico National Olympiad
2004 Mexico National Olympiad
2
2
Part of
2004 Mexico National Olympiad
Problems
(1)
max No. of positive integers so for that any 2 of them a,b : |a - b| >=ab/100
Source: Mexican Mathematical Olympiad 2004 OMM P2
7/31/2018
Find the maximum number of positive integers such that any two of them
a
,
b
a, b
a
,
b
(with
a
≠
b
a \ne b
a
=
b
) satisfy that
∣
a
−
b
∣
≥
a
b
100
.
|a - b| \ge \frac{ab}{100} .
∣
a
−
b
∣
≥
100
ab
.
number theory
Integers
Inequality