Răspuns:
Explicație pas cu pas:
1.75 =175/10 =7/4
2.75=275/100 =11/4
3.1/6 =19/6
a:7/4 = b:11/4 =c :19/6 =k
a:7/4 =k ; a=7k/4
b:11/4 =k ; b=11k/4
c:19/6 =k ; c=19k/6
a+b+c =9200
7k/4 + 11k/4 + 19k/6 =9200 numitor 12
21k+33k+38k =110400
92k =110400
k =11040:92 =1200
a=7×1200/4 =2100
b=11×1200/4 =3300
c=19×1200/6 =3800
