Răspuns :
notăm numerele cu a, b, c.
a = 60
b = 60 × 1,25 = 75
c = 40/100 * (60+75) = 2/5 * 135 = 270/5 = 54
Ma = (60+75+54) : 3
Ma = 189 : 3
Ma = 63
a = 60
b = 60 × 1,25 = 75
c = 40/100 * (60+75) = 2/5 * 135 = 270/5 = 54
Ma = (60+75+54) : 3
Ma = 189 : 3
Ma = 63