1.
a) 360:10=36 => da, putem obtine exact 10 linii
b) 360:20=18 => da, putem obtine exact 20 linii
c) 360:200=360:(10×20)=360:10:20=36:20=1 rest 16 => nu, nu putem obtine exact 200 de linii
2.
a) 360:5=72 => da, putem obtine exact 5 linii
b) 360:9=40 => da, putem obtine exact 9 linii
c)360:45=360:(5×9)=360:5:9=72:9=8 => da, putem obtine exact 45 de linii