Răspuns :
a+b=200
a=1/3b
1/3b+b=200
b/3+b=200 amplificam cu 3
b+3b=600
4b=600
b=150
a=1/3*150
a-150/3 a = 50
a=1/3b
1/3b+b=200
b/3+b=200 amplificam cu 3
b+3b=600
4b=600
b=150
a=1/3*150
a-150/3 a = 50