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Afla suma a 3 nr naturale consecutive stiind ca primul este de 3 ori mai mare decat 52

Răspuns :

52x3=156(a)
156+1=157(b)
157+1=158(c)

156+157+158=471
a |-----|-----|-----|
b |-----|-----|-----|1|
c |-----|-----|-----|1|1|     

52 × 3 = 156 (a)
156 + 1= 157 (b)
156+1+1=158 (c)
Proba : 156+157+158= 471.