If a child has mental age of 5 years and cgronological age of 4 years than what will be the I.Q. of child?

Options

A. 125
B. 80
C. 120
D. 100

Answer

A

Explanation

If a child has mental age of 5years and chronological age of 4 years than the IQ of child will be 125.The IQ was initially based on calculation of mental age determined by the presumed age level at which certain cognitive tasks are typically accomplished.These early calculation of IQ wew based on the following formula- Mental Age in months divided by Chronological Age in month X 100.