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2014-09-08T15:02:31+03:00
A,b,c   dp cu 4,7,9

a/4=b/7=c/9=k

a=4k
b=7k
c=9k

4k+7k+9k=2240

20k=2240

k=112

a=4*112=448
b=7*112= 784
c=9*112= 1008
1 5 1
2014-09-08T15:04:53+03:00
A,b,c   dp cu 4,7,9

a/4=b/7=c/9=k

a=4k
b=7k
c=9k

4k+7k+9k=2240

20k=2240

k=112

a=4*112=448
b=7*112= 784
c=9*112= 1008