Răspunsuri

2014-09-29T18:57:11+03:00
Ohh, si eu am avut exact aceeasi tema pe Luni,
Uite cum se face

 \frac{a}{2} =  \frac{b}{5} =  \frac{c}{7} =  \frac{d}{10} = k
a=2k
b=5k
c=7k
d=10k
2k+5k+7k+10k=360
24k=360
k=360:24
k=15
a=2*15=30
b=5*15=75
c=7*15=105
d=10*15=150