This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Demography, Subject name: Social & Preventive Medicine
Midyear population calculated on? 
Select and explain. 
A. 1st june, B. 30th june, C. 1st july, D. 31st june
C: 1st july
Answer: C: 1st july 
Explanation: ANSWER: (C) 1st JulyREF: Park 18th ed p.639Mid year population is estimated population on 1st of julyCensus estimation is done at end of first quarter in the first year after a decade (end of march)