Răspunsuri

2014-07-20T14:03:39+03:00
Notez nr cu a,b si c.
a+b+c=252
a=2b
c=a/2+b/2=b+b/2=3b/2
2b+b+3b/2=252
9b/2=252
9b=504
b=56=>a=112=>c=84
3 4 3
2014-07-20T14:15:53+03:00
A+b+c=252
a=2b
c=1/2*a+1/2*b

2b/2+b/2+b +2b=252
3b/2+3b=252
3b+6b=252*2
9b=504
b=504:9=56
a=2*56=112
c=112/2+56/2=56+28=84