Răspuns :

{a,b,c,d}d.p{3,4,5,6}
a=240
240/3=b/4=c/5=d/6
{a,b,c,d} d.p {3,4,5,6}
d=240
a/3=b/4=c/5=240/6
c=240•5/6
c=1200/6
c=200
b/4=200/5
b=200•4/5
b=800/5
b=160
a/3=160/4
a=3•160/4
a=480/4
a=120

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