Answer:
In four countries, the gap between male and female literacy among the adult population is greater than 30 percent: Yemen (male literacy rate 73.1 percent, female 34.7 percent, difference 38.4 percent), Central African Republic (male 64.8, female 33.5, difference 32.3), Afghanistan (male 43.1, female 12.6, difference 30.5), and Togo (male 68.7, female 38.5, difference 30.2).