Question

Aflati numerele arcaror suma este 130 si care sunt inverse proportionale cu numerele 2,3 si 4

Answer 1

nr sunt a ,b ,c
a+b+c=130
a/1/2=b/1/3=c/1/4
a+b+c               130           120
---------------- = ----------=  -------------
1/2+1/3+1/4       13/12         1

a/1/2=120/1⇒a=120x1/2=60
b/1/3=120/1⇒ b=120x1/3=40
c/1/4=120/1⇒ c=120x1/4=30