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stiind ca x/a=y/b=z/c=t/d si x/a=5 calculati x+y+z+t daca a+b+c+d=110

Răspuns :

x/a=y/b=z/c=t/d si x/a=5 calculati x+y+z+t daca a+b+c+d=110

x=5a
y=5b
z=5c
t=5d
x+y+z+t=5a+5b+5c+5d=5(a+b+c+d)=5×110=550