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Suma a cinci nr. naturale consecutive este 610.Afla numerele.

Răspuns :

a+a+1+a+2+a+3+a+4=610
5a+10=610
5a=610-10
5a=600
a=600:5
a=120
a+1=121
a+2=122
a+3=123
a+4=124 
cele cinci nr. sunt: 120,121,122,123,124
suma lor :120+121+122+123+124=610