C-01-Q140mediumsingle_mcq0.4‾0.\overline{4}0.4 as a fraction equals—a25\frac{2}{5}52b49\frac{4}{9}94c410\frac{4}{10}104d14\frac{1}{4}41ব্যাখ্যাFor a single repeating digit, 0.d‾=d90.\overline{d}=\frac{d}{9}0.d=9d, so 0.4‾=490.\overline{4}=\frac{4}{9}. This can be verified since .