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suma a 3 nr consecutive ests 75. determ nr



Răspuns :

a+a+1+a+2=75
3a+3=75
3a=72
a=72:3
a=24
nr consecutive sunt 24,25,26
a+(a+1)+(a+2)=3a+3=75
3a=72
a=24
a+1=25
a+2=26
24+25+26=75