Social & Preventive Medicine If population growth rate is 1.2-1.5%, population doubles in how many years? A 23-28 years B 28 to 35 years C 35-47 years D 47-58 years 💡 Explanation If population growth rate is 1.2-1.5%, population doubles in how many years? ✓ Correct Answer: D. 47-58 years