Question

sa se imparta nr 72 in parti direct proportionale cu nr 5,6 si 7

Answer 1

a+b+c =72
a/5=b/6=c/7

a/5+b/6+c/7 =a+b+c /5+6+7 =72/18 =4
a/5 =4 ;   a =5*4 =20
b/6 =4  ;   b =6*4 =24
c/7 =4  ;   c =7*4 =28
v  ;    20+24+28 =72