Răspuns :

Răspuns:

Explicație pas cu pas:

a/2=b/4=c/6=(a+b+c)/12=120/12=10

a=2x10=20

b=4x10=40

c=6x10=60

Owlliaid

(a, b, c) d.p. (2, 4, 6) => a/2 = b/4 = c/6 = K

a + b + c = 120

a/2 = K

a = 2K

b/4 = K

b = 4K

c/6 = K

c = 6K

2K + 4K + 6K = 120

6K + 6K = 120

12K = 120

K = 120/12

K = 10

a = 2K

a = 2 * 10

a = 20

b = 4K

b = 4 * 10

b = 40

c = 6K

c = 6 * 10

c = 60

120 = 20 + 40 + 60

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