Question

Espero que a foto tenha melhorado

Answer 1

$\frac{A}{20000} = \frac{B}{30000}= \frac{C}{50000} = \frac{A+B+C}{100000}$= $\frac{40000}{100000}= \frac{2}{5}$

$\frac{A}{20000} = \frac{2}{5} = 8000 = A$
$\frac{B}{30000} = \frac{2}{5} = 12000 = B$
$\frac{C}{50000} = \frac{2}{5} = 20000 = C$

12000 + 8000+ 20000 = 40000