Răspuns :
Răspuns:
329:12=27 rest 5
24
------
=89
=84
--------
==5
____________
532:15=35 rest 7
45
-------
=82
=75
---------
==7
_____________
din teorema impartirii cu rest => R < I
I=4 =>R=0,1,2,3
a:4=3 rest 0=>a=4·3+0=>a=12
a:4=3 rest 1=>a=13
a:4=3 rest 2=>a=14
a:4=3 rest 3=>a=15
S=12+13+14+15=>S=54
[tex]\it n:4=3\ rest \ r \Rightarrow n=4\cdot3+r;\ \ r\in\{0,\ 1,\ 2,\ 3\}\\ \\ Deci, \ n\in\{12,\ \ 13,\ \ 14,\ \ 15\}\\ \\ S = 12+13+14+15=54[/tex]