Question

$triind \: ca \: \frac{a}{b} = \frac{c}{d} = \frac{e}{f} = \frac{1}{3} \: atunci \: \frac{2a}{2b} + \frac{3c}{3d } + \frac{4e}{4f} este \\ a) \frac{1}{3} \: \: \: \: \: b) 3 \: \: \: \: \: c) \frac{5}{3} \: \: \: \: \: d)1$

Answer 1

raspuns final D)1.
Bafta!