Răspuns :
a/2 =b/3=c/5=x(a+b+c)
a/2 =b/3=c/5=(a+b+c)/(2+3+5)=(a+b+c)/10
(a+b+c)/10=x(a+b+c)
1/10=x
deci x = 1/10
a/2 =b/3=c/5=(a+b+c)/(2+3+5)=(a+b+c)/10
(a+b+c)/10=x(a+b+c)
1/10=x
deci x = 1/10