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2014 Junior Regional Olympiad - FBH
1
Junior Regional Olympiad - FBH 2014 Grade 7 Problem 1
Junior Regional Olympiad - FBH 2014 Grade 7 Problem 1
Source:
October 3, 2018
proportion
Problem Statement
If for numbers
a
a
a
,
b
b
b
and
c
c
c
holds
a
:
b
=
4
:
3
a : b=4:3
a
:
b
=
4
:
3
and
b
:
c
=
2
:
5
b : c=2:5
b
:
c
=
2
:
5
, find the value
(
3
a
ā
2
b
)
:
(
b
+
2
c
)
(3a-2b):(b+2c)
(
3
a
ā
2
b
)
:
(
b
+
2
c
)
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