Răspuns :
gemenii = 9 ani
tata = 9 × 4 = 36
mama = 36 - 3 = 33
Rezolvare:
33 + 36 + 9 + 9 = 69 + 18 = 87
tata = 9 × 4 = 36
mama = 36 - 3 = 33
Rezolvare:
33 + 36 + 9 + 9 = 69 + 18 = 87
(2×9)+(9×4)+(9×4-3)=
18+(9×4)+(9×4-3)=
18+36+(9×4-3)=
18+36+(36-3)=
18+36+33=
54+33=
=87