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semisuma atrei numere consecutive pare ese 51 afla numerele

Răspuns :

semisuma=jumatatea sumei
suma=51x2
suma=102
a+b+c=102
-sunt numere consecutive
a |----|
b |----|...1
c |----|....2
   
                  3 segmente
102-1-2=99 noua suma
99:3=33 a
33+1=34 b
33+2=35 c