Question

Calculati suma tuturor resturilor impartirilor la 6 ale nr. naturale de la 0 la 55.

Answer 1

7:6=1 r1
8:6=1r2
9:6=1r3
10:6=1r4
11:6=1r5
13:6=2r1..........pana la50:6=8r2
deci avem( 1+2+3+4+5)x7+1+2=15x7+3=105+3=108

Answer 2

7:6=1 r1
8:6=1r2
9:6=1r3
10:6=1r4
11:6=1r5
13:6=2r1..........pana la50:6=8r2