Question

sa se afle nr naturale diferite de 0 si mai mici decat 100 care impartite la13 dau un rest egal cu dublul catului

Answer 1

numerele sunt:15;30;45;60;75;90.....( multiple de 15)

(13*1)+2=15
15:13=1 rest 2
15=(1*13)+2=13+2...............nr.1=>15

(13*2)+4=30
30:13=2 rest 4
30=(2*13)+4=26+4................nr 2=>30

(13*3)+6=45
45:13=3 rest 6
45=(3*13)+6=39+6...............nr.3=>45

(13*4)+8=60
60:3=4 rest 8
60=(4*13)+8=52+8..............nr.4=>60

(13*5)+10=75
75:13=5 rest 10
75="(5*13)+10=65+10........nr.5=>75

(13*6)+12=90
90:13=6 rest 12
90=(6*13)+12=78+12........nr.6=>90