This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social Science, Mental Health & Genetics, Subject name: Social & Preventive Medicine
Boy with IQ of 62 will come under 
Select and explain. 
A. Mild MR, B. Moderate MR, C. Severe MR, D. Normal
A: Mild MR
Answer: A: Mild MR 
Explanation: Ans. a (Mild MR). (Ref. PSM, Park, 17th/pg.468)IQ =Mental age-----------Chronological agex 100 Level of intelligenceIQIdiot0-24Imbecile25-49Moron50-69Borderline70-79Low normal80-89Normal90-109Superior110-119Very superior120-139Near genious>140