Question

Intr o cutie avem un nr de bomboane. Daca le impartim in mod egal la 3, 4, 5 sau 6 copii ramab de fiecare data 2 bomboane
a) verificati daca ij punga pot fi 122 bomboane
b)aflati numarul bomboanelor din cutie daca aceasta este un numar cuprins intre 300 si 350

Answer 1

nr de bomboane =x x=3a+2|-2=>x-2=3a x=4b+2|-2=>x-2=4b x=5c+2|-2=>x-2=5c x=6d+2|-2=>x-2=6d [3;4;5;6]=3*2²*5=60=>x-2 apartine M60 a)x=120+2=>x=122 b)x=300+2=>x=302