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suma a trei nr impare consecutive este 60.afla nr

Răspuns :

a |____|
b |____|-----|+2
c |____|-----|+4
2+4=6
60-6=54 (suma partilor egale)
54:3=18(a)
18+2=20(b)
18+4=22(c)
verificare: 18+20+22=60