Răspunsuri

2014-04-02T10:20:06+03:00
Nr.cazurilor posibile = 700 . Nr.cazurilor favorabile : a) 303,306,309,402,405,408,501,504,507,600,603,606,609 =13 . P=13/700 . b) nr.caz.favorabile: 300,305,400,405,500,505,600,605,700 . P= 9/700 ..