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suma 3 nr consecutive pare este 198.aflati nr

Răspuns :

a |-----|
b |-----|+2|
c |-----|+2|+2|      } 198.

198 - 6 = 192  ( 3 segmente egale)
192 : 3 = 64 (a)
64 +2 = 66 (b)
64 +2+2 = 68 (c)
Proba : 64 +66 +68 = 198.
A+b+c=198 B=a+2 C=a+2+2=a+4 A+a+2+a+4=198 3a+6=198 3a=198-6 3a=192 a=192:3 a=64 b=64+2=66 c=64+2+2=64+4=68