This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'A community has total population 10000. Children ranging 0-6 years are 2000. Literate persons among > 7 years old are 4000. What is effective literacy rate ? \nSelect and explain. \nA. 20%, B. 40%, C. 50%, D. 60%', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 40% Literacy rate is used for population relating to seven years and above - In the given population this accounts for 8000.Out of 8000, 4000 are literate - literacy rate is 50%", 'role': 'assistant'}]