UPTET Paper 1 2017 Solved Paper

Concept:Intelligence Quotient (IQ) is a measure of a person’s intellectual ability relative to their age. It is calculated by comparing mental age with chronological age.Explanation:The standard formula for IQ is:$$IQ = \frac{Mental\ Age}{Chronological\ Age} \times 100$$Mental age refers to the cognitive level a person performs at, while chronological age is their actual age in years. Multiplying by 100 eliminates decimals and gives a whole number. For example, a child with mental age 8 and chronological age 10 has IQ = (8/10)×100 = 80.Options A and D are incorrect because they use addition or multiplication without a ratio. Option B omits the multiplication by 100, which is essential for the standard IQ scale.Answer:Option C: $\frac{Mental\ Age}{Chronological\ Age} \times 100$