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Question
If the mental age of a 10 year old girl is 12 years, then her IQ is ______.
Options
80
100
120
Solution
If the mental age of a 10 year old girl is 12 years, then her IQ is 120.
Explanation:
Intelligence Quotient (I.Q.) = `("Mental Age" ("M.A."))/("Chronological Age" ("C.A.")) xx 100`
`= 12/10 xx 100`
= 120
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