What is the IQ of an imbecile?: (A) 70-80, (B) 50-69, (C) 20-49, (D) 0-20
Answer is C. Categorical classification of mental retardationCategory I.Q.Moron50-90Imbecile20-49Idiot<20(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 51)