Răspuns :
0 rosii 5 albe
1 rosie 4 albe
2 rosii 3 albe
3 rosii 2 albe
4 rosii 1 alba
5 rosii 0 albe
SE POATE IN 6 MODURI
1 rosie 4 albe
2 rosii 3 albe
3 rosii 2 albe
4 rosii 1 alba
5 rosii 0 albe
SE POATE IN 6 MODURI
In total sunt 10+6= 16 lalele , se aleg 5 unde nu are importanta ordinea lor, deci e vorba de combinari de 16 luate cate 5 :[tex] C_{16}^5= \frac{16!}{5!(16-5)!}= \frac{11!*12*13*14*15*16}{1*2*3*4*5*(11!)}= 12*13*14*2=4368. [/tex]