In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2 : 3, then what percent of the population is literate ?

A. 71 years B. 72 years C. 74 years D. 77 years

A. Rs. 4, Rs. 23 B. Rs. 13, Rs. 17 C. Rs. 15, Rs. 14 D. Rs. 17, Rs. 13

A. 2/13 B. 13/40 C. Data inadequate D. None of these

A. 8 B. 12 C. 16 D. 24