Răspuns :
a + b = 200
a = b * 1/4
b/4 + ⁴⁾b = ⁴⁾200
b + 4b = 800
5b = 800
b = 800 : 5
b = 160
a = 160/4
a = 40
a = b * 1/4
b/4 + ⁴⁾b = ⁴⁾200
b + 4b = 800
5b = 800
b = 800 : 5
b = 160
a = 160/4
a = 40