If $\dfrac{a}{b} = \dfrac{c}{d} = \dfrac{e}{f}$, then $\dfrac{a+c+e}{b+d+f}$ equals—

Question

Accepted Answer

$\dfrac{a}{b}$

Answer

$3 \cdot \dfrac{a}{b}$

Answer

$0$

Answer

$\dfrac{b}{a}$

If ab=cd=ef\dfrac{a}{b} = \dfrac{c}{d} = \dfrac{e}{f}ba​=dc​=fe​, then a+c+eb+d+f\dfrac{a+c+e}{b+d+f}b+d+fa+c+e​ equals—