Question

Ajutor cu problema 103

Answer 1

a+b+c=345

a+a/4=b+b/2=c+c/5

5a/4=3b/2=6c/5

a/(4/5)=b/(2/3)=c/(5/6)

(a+b+c)/(⁶4/5+¹⁰2/3+⁵5/6)=

345×30/(24+20+25)=

345×30/69=(15×23)×10/23=150

5a/4=150 /:5

a/4=30

a=120

3b/2=150 /:3

b/2=50

b=100

6c/5=150 /:6

c/5=25

c=125

verificare:120+100+125=345