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Daca a+b+c=12,calculati abc(numar)+bca(numar)+cab(numar) {numerele sunt scrise in baza zece}.URGENT DAU COROANA !



Răspuns :

abc+bca+cab=100a+10b+c+100b+10c+a+100c+10a+b=111a+111b+111c=
=111(a+b+c)=111 ×12=1332