Question

Si : a/7=b/13=c/12; a+b+c = 192
Halla el vamos de a+ b

Answer 1

* a/7=b/13=c/12=k

* (a+b+c)/(7+13+12)=k
192/32=k
k=6

■ a/7=6
a=42

■b/13=6
b=78

a+b=42+78=120