Răspuns :
1/10 × 40 =1×40/10= 40 ÷10=4 (bile negre)
1/6×40-4 (bile negre) = 1×36/6=36÷6=6 (bile albe )
40-(4+6)=40-10=30 (bile rosii)
1/6×40-4 (bile negre) = 1×36/6=36÷6=6 (bile albe )
40-(4+6)=40-10=30 (bile rosii)
Bile negre: 40×1/10=40/10=4
Bile albe: (40-4)×1/6=36×1/6=36/6=6
Bile rosii: 40-4-6=30
R. 30 bile rosii; 6 bile albe; 4 bile negre
Bile albe: (40-4)×1/6=36×1/6=36/6=6
Bile rosii: 40-4-6=30
R. 30 bile rosii; 6 bile albe; 4 bile negre