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a/3=b/5 ,a/6=c/7 stiind ca a+b+c=46 sa se afle a,b,c


Răspuns :

a/3 = b/5 => b = 5a/3

a/6 = c/7 => c = 7a/6

a + 5a/3 + 7a/6 = 46

6a + 10a + 7a = 276

23a = 276

a = 12

b = 12·5/3 = 60/3 = 20

c = 12·7/6 = 84/6 = 14