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a+b+c+d=581 a=11 b+c+d=nr consecutive afla b,c,d

Răspuns :

b+c+d=581-11
b+c+d=570
b+b+1+b+2=570
3b=570-3
b=567:3
b=189
c=189+1=190
d=189+2=191

verificare 11+189+190+191=581

3b=581-11-3
3b=567
b=567:3
b=189
c=189+1
c=190
d=189+2
d=191