CONCURS #012
17.02.2022, ora 20:00Problema 1 [135 puncte]
$Calculati\ suma\ cifrelor\ numarului\ 9999\cdot 1000-1.$
Problema 2 [229 puncte]
$ Aflati\ cate\ numere\ de\ trei\ cifre\ au\ produsul\ cifrelor\ egal\ cu\ 12.$
Problema 3 [323 puncte]
$Numerele\ de\ la\ 1\ la\ 10\ sunt\ scrise\ pe\ 10\ cartonase,\ si\ sunt\ asezate\ cu\ fata\ in\ jos.\ $
$Care\ e\ numarul\ minim\ de\ cartonase\ ce\ trebuie\ luate\ pentru\ a\ fi\ siguri\ ca\ avem\ doua$
$cartonase\ a\ caror\ suma\ se\ imparte\ exact\ la\ 10?$
Problema 4 [417 puncte]
$Cate\ numere\ de\ trei\ cifre\ dau\ restul\ 3\ la\ impartirea\ cu\ 5?$
Problema 5 [511 puncte]
$Calculati\ suma\ primelor\ 37\ de\ numere\ naturale.$