C-11-Q034mediumsingle_mcqab=cd=ef=k\dfrac{a}{b}=\dfrac{c}{d}=\dfrac{e}{f}=kba=dc=fe=k হলে a+c+eb+d+f=?\dfrac{a+c+e}{b+d+f} = ?b+d+fa+c+e=?akkkb3k3k3kck3\dfrac{k}{3}3