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a/1=b/2=c/3 a+b+c=60

Răspuns :

a/1 = b/2 = c/3  = (a+b+c) / (1+2+3) = 60 / 6 = 10

a = 1 × 10 = 10
    b = 2 × 10 = 20
    c = 3 × 10 = 30