If a child has mental age of 5 years and...

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

120

100

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IQ is intelligence Quotient. It is calculated as per the ratio of intelligence and average calculated in any group. It is coined by psychologist William Stern. IQ scores are used for educational assessment and aptitude tests. It varies from person to person

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