Pediatrics 10 year old child with mental age of 2 years will have an IQ level of: September 2010, March 2013 (h) A 20 B 30 C 50 D 70 💡 Explanation 10 year old child with mental age of 2 years will have an IQ level of: September 2010, March 2013 (h) ✓ Correct Answer: A. 20