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Afla numerele a, b si c stiind ca a:b=2 b:c=2, iar a-c=135
Va rog:))


Răspuns :

A=2B; B=2C; A=C+135->2B=C+135 -> 4C=C+135-> C=45; B=90; A= 180
a:b=2=>a=2b
b:c=2=>b=2c
a-c=135
a=2b=4c=>4c-c=135=>3c=135=>c=135:3=45
b=45*2=90
a=90*2=180