Correct Answer - Option 2 : 125
Intelligence Quotient is abbreviated as IQ. IQ is a measurement of a person’s intelligence and it is measured in number. The average IQ of a person is 100.
An individual’s Intelligence Quotient (IQ) is determined by the formula:
\(({\bf{Intelligence}}\;{\bf{Quotient}}\;\left( {{\bf{IQ}}} \right) = \frac{{{\bf{Mental}}\;{\bf{Age}}\;\left( {{\bf{MA}}} \right)\;}}{{{\bf{Chronological}}\;{\bf{Age}}\;\left( {{\bf{CA}}} \right)}} \times 100)\)
where Mental Age is based on your intellectual development.
Chronological Age is the number of years a person has lived.
Given: CA = 4 years∴80=MA10×100
MA = 5 years
\((\therefore IQ = \frac{{{\bf{5}}}}{{4}} \times 100)\)
IQ = 125
| IQ Range |
Descriptive Label |
| Above 130 |
Very Superior Intelligence (gifted) |
| 120 to 129 |
Superior Intelligence |
| 110 to 119 |
High Average Intelligence |
| 90 to 109 |
Average Intelligence |
| 80 to 89 |
Low Average Intelligence |
| 71to 79 |
Borderline Intellectual Functioning |
| 55 to 70 |
Mild Mental Intellectual Disability |
| 40 to 54 |
Moderate Intellectual Disability |
| 25 to 39 |
Severe Intellectual Disability |
| Below 25 |
Profound Intellectual Disability |
Hence, the IQ of a child will be 125 and the child IQ will lie in the 120 to 129 IQ Range and having the Superior Intelligence.
