The IQ of a person is given by the formula IQ | vedclass

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(A) It is given that for a group of $12$ years old children,$CA = 12$ years.The formula for $IQ$ is $IQ = \frac{MA}{12} 	imes 100$.Given the inequali

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$9.6 \leq MA \leq 16.8$

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(A) It is given that for a group of $12$ years old children,$CA = 12$ years.The formula for $IQ$ is $IQ = \frac{MA}{12} 	imes 100$.Given the inequality $80 \leq IQ \leq 140$,we substitute the expression for $IQ$:$80 \leq \frac{MA}{12} 	imes 100 \leq 140$To solve for $MA$,multiply the entire inequality by $\frac{12}{100}$:$80 	imes \frac{12}{100} \leq MA \leq 140 	imes \frac{12}{100}$$9.6 \leq MA \leq 16.8$Thus,the range of mental age for the group of $12$ years old children is $9.6 \leq MA \leq 16.8$.

The $IQ$ of a person is given by the formula $IQ = \frac{MA}{CA} \times 100$,where $MA$ is mental age and $CA$ is chronological age. If $80 \leq IQ \leq 140$ for a group of $12$ years old children,find the range of their mental age.

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