Question

împartind nr 60 direct proportionale cu 2 ,3,5

Answer 1

{ a,b,c } d.p { 2,3,5 }
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a  + b + c = 60
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a / 2 = b / 3 = c / 5 = K
a / 2 = K => a = 2 K
b / 3 = K => b = 3 K
c / 5 = K => c = 5 K

2 K + 3 K + 5 K = 60
5 K + 5 K = 60
10 K = 60
K = 60 : 10
K = 6

a = 6 x 2 = 12

b = 6 x 3 = 18

c = 6 x 5 = 30

Answer 2

a+b+c =60
a/2+b/3+c/5 =a+b+c /2+3+5 =60/10 =6

a/2 =6 ;         a =2*6 =12
b/3 =6 ;          b =3*6 =18
c/5 =6 ;           c =5*6 =30