#### Question

IQ of a person is given by the formula

IQ = `(MA)/(CA) xx100`

Where MA is mental age and CA is chronological age. If 80 ≤ IQ ≤ 140 for a group of 12 years old children, find the range of their mental age.

#### Solution

It is given that for a group of 12 years old children, 80 ≤ IQ ≤ 140 … (i)

For a group of 12 years old children, CA = 12 years

Is there an error in this question or solution?

Solution IQ of a person is given by the formula Where MA is mental age and CA is chronological age. If 80 ≤ IQ ≤ 140 for a group of 12 years old children, find the range of their mental age. Concept: Graphical Solution of Linear Inequalities in Two Variables.