Răspuns :

Munmncid
[tex] \frac{a}{2} = \frac{b}{3} = \frac{c}{5}=k [/tex]
a=2k
b=3k
c=5k
a*b=5400
2k*3k=5400
6k² =5400
k²=5400/6
k²=900
k=30
a=60
b=90
c=150

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