dau coreoana!!!!!!!

Răspuns:
..6x=5y=4z=k
x=k/6
y=k/5
z=K/4
x+y+z=37
k/6+k/5+k/4=37
(10k+12k+15k)/60=2220/60|×60
37k=2220
k=2220/37
k=60
x=10
y=12
z=15