Si a/b=m/n,calcula m-n , si se sabe que a+b=40; a-b=30 y m+n= 50 .
a)25
b)27.5
c)37.5
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Si a/b=m/n,calcula m-n , si se sabe que a+b=40; a-b=30 y m+n= 50 .
a)25
b)27.5
c)37.5