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Probleme de logica: Ora provocarii magice
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Dovedeste-ti inteligenta si castiga puncte


Vrei sa castigi puncte pentru casa ta? Iata un alt mod de a o face: problema Hermione, Ron si scrisorile, realizata de Monicao


Premise:
1. Toate scrisorile din aceasta camera care sunt datate sunt scrise pe hartie albastra.

2. Nici o scrisoare nu este scrisa cu cerneala neagra, exceptandu-le pe cele scrise caligrafic.

3. Ron nu a pus in dosar nici una din scrisorile pe care nu le citeste cu foarte mare placere.

4. Nici o scrisoare scrisa pe o singura coala de hartie nu este nedatata.

5. Toate scrisorile carora Ron nu le-a facut vreun semn sunt scrise cu cerneala neagra.

6. Toate scrisorile de la Hermione incep cu „Draga prietene”.

7. Toate scrisorile scrise pe hartie albastra sunt puse la dosar.

8. Nici unei scrisori care are mai mult de o coala Ron nu i-a facut vreun semn.

9. Nici o scrisoare care incepe cu „Draga prietene” nu este scrisa caligrafic.

Sa se ajunga la concluzia: „Ron citeste cu foarte mare placere scrisorile de la Hermione”. Sa se arate calea logica.

Raspunsul se va posta pe forum: [aici].



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