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3
Junior Regional Olympiad - FBH 2018 Grade 8 Problem 3
Junior Regional Olympiad - FBH 2018 Grade 8 Problem 3
Source:
September 19, 2018
Digits
4 digit
Problem Statement
Find all
4
4
4
digit number
a
b
c
d
‾
\overline{abcd}
ab
c
d
such that
4
⋅
a
b
c
d
‾
+
30
=
d
c
b
a
‾
4\cdot \overline{abcd}+30=\overline{dcba}
4
⋅
ab
c
d
+
30
=
d
c
ba
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