Ответ:
1,4,6................
1. 20+12+7+9=39
(20+10) /2 =15
4. 12+27=39
(27+3) /2=15
6. 12+27=39
(20+10) /2=15
2. 20+12+7+9+27+3+10=88
(20+9)/2=14,5
3. 12+27=39
(9+3)/2=12/2=6
5. 20+3=23
(20+10)/2=15
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Ответ:
1,4,6................
1. 20+12+7+9=39
(20+10) /2 =15
4. 12+27=39
(27+3) /2=15
6. 12+27=39
(20+10) /2=15
2. 20+12+7+9+27+3+10=88
(20+9)/2=14,5
3. 12+27=39
(9+3)/2=12/2=6
5. 20+3=23
(20+10)/2=15