Răspuns :
a+b+c=65
6+15+20=41
65-41=24
24÷3=8
1nr=6+8=14
2 nr = 15+8= 23
3 nr = 20+8 = 28
14+23+28=65
6+15+20=41
65-41=24
24÷3=8
1nr=6+8=14
2 nr = 15+8= 23
3 nr = 20+8 = 28
14+23+28=65