Question

Aflati toate nr. mai mici ca 500care inmartite cu 12,45 si 18 dau de fiecare data restul 10
URGENT DAU COROANA

Answer 1

x:12=C1 rest 10
x=M12+10
x:45=c2 rest 10
x=M45+10
x:18=C3 rest 10
x=M18+10
x=[M12,M45,M18]+10
x<500
12=2²•3
45=3²•5
18=3²•2

x=3²•2•5+10
x=9•10+10
x=90+10
x=100

x=3²•2²•5+10
x=45•4+10
x=180+10=190

x=3³•2•5+10
x=27•10+10=270+10
x=280

x=3²•2•5•4+10
x=90•4+10=360+10
x=370

x=9•2•25+10
x=9•50+10
x=450+10
X=460

=>x={100,190,280,370,460}