Răspuns :
a+b/2=1004 => a+b=1004•2 => a+b=2008
a=3b
3b+b=2008
4b=2008 => b= 2008/4 => b=502
a=3•502=1506
Verificare
502+1506/2=2008/2=1004
a=3b
3b+b=2008
4b=2008 => b= 2008/4 => b=502
a=3•502=1506
Verificare
502+1506/2=2008/2=1004