Psychiatry General 91d1c961 IQ of 70 - 75 denotes A Borderline MR B Moderate MR C Severe MR D Normal intelligence High-Yield Explanation Normal IQ → 90-109; Borderline IQ → 70-89; Mild mental retardation IQ → 50-69; Moderate mental retardation IQ → 35-49; Severe MR IQ → 20-34; Profound MR IQ → 0-19.