Social & Preventive Medicine A child of 10 years has a mental age of 2 years, his IQ level is:- A 20 IQ points B 30 IQ points C 50 IQ points D 70 IQ points 💡 Explanation A child of 10 years has a mental age of 2 years, his IQ level is:- ✓ Correct Answer: A. 20 IQ points