Se aseaza la birou. Pe mouse pad-ul lui Petru apare o inmultire ciudata.
C. Mouse Pad (15%)
Se dau doua numere de cate cinci cifre, formate cu toate cifrele de la 0 la 9. Produsul lor se poate face in doua moduri (datorita comutativitatii inmultirii). Mai exact:
Aflati cele doua numere.
Sursa: Nicolae Oprisiu, Olimpiada jocurilor rationale, Ed, Dacia, 1984
Petru is taking his place. On his mouse pad there is a strange multiplication.
C. Mouse Pad (15%)
There are two five-digit numbers formed with all digits from 0 to 9. Their product can be done in two ways (due to multiplicity of propagation). More exactly:
Find out the two numbers.
Source: Nicolae Oprisiu, Olimpiada jocurilor rationale, Ed, Dacia, 1984