Question

Intr-o cutie dunt bile rosii albe si negre.Din total 3/6 sunt bile rosii 5/8 din rest sunt albe iar 9 sunt negre.Cate bile sunt in cutie

Answer 1

8/8-5/8=9
3/8=9negre
1/8=9:3=3
5/8=3x5=15albe
6/6-3/6=15+9=24
3/6=24rosii

Answer 2

3x/6=x/2=bile rosii
x-x/2=x/2 =rest
5/8 × x/2=5x/16 = bile albe
x/2+5x/16+9=x
8x+5x+144=16x
3x=144
x=48 bile 

    x/2=24 bile albe
5x/16=15 bile albe
9 bile negre

       9:3x5=15 bile albe

     15:5x8=24 bile rosii     
Sper ca te-am ajutat!!