Răspuns :
0,(3)=1/3
0,25=1/4
0,2=1/5
x/3 = y/4 = z/5 = k
x=3k
y=4k
z=5k
(3k+4k+5k)/3 = 60
12k=180
k=15
x=45
y=60
z=75
0,25=1/4
0,2=1/5
x/3 = y/4 = z/5 = k
x=3k
y=4k
z=5k
(3k+4k+5k)/3 = 60
12k=180
k=15
x=45
y=60
z=75