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!