Pentru concursul de matematica Crin si Crina rezolva in fiecare zi probleme suplimentar.
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Luni Marti Miercuri Joi Vineri Sambata Duminica
a)Cate probleme au rezolvat ei in primele douza zile?
b)Dar in primele cinci zile?
c)Numarul problemelor in week-end este de:
d)Numarul problemelor rezolvate in aceasta saptamana este mai mare decat 120 si mai mic decat 150.
A.adevarat B.fals C.posibil
Va rog sa ma ajuta-ti!