September 2018 1 259 Report
1.si m/3=n/7=p/8, calcular:E= 4m-n+2p/n+2p

2.a/7=b/9=c/11=d/15 y: a+b+c=36, calcular el valor de "d"

3a/5=b/8=c/5, y ademas; 3a-5b+2c=245,hallar "a+b+c"

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