Question

Si A/2= b/8= c/7 sabiendo que a+b=60 hallar "C"

Answer 1

$\frac{a}{2} = \frac{ b}{8} = \frac{c}{7} = k \\ a = 2k \\ b = 8k \\ c = 7k$
$a + b = 60 \\ 2k + 8k = 60 \\ 10k = 60 \\ k = 6$
$entonces \: c = 7k = 7(6) = 42$