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A 10 year old child has mental age of 12, then what would be his I. Q.?
Question

A 10 year old child has mental age of 12, then what would be his I. Q.?

A.

100

B.

90

C.

120

D.

110

Correct option is C

Intelligence Quotient (IQ)refers to mental age (MA) expresses as a ratio of chronological age (CA) multiplied by 100. Thus,
IQ would be 12/10 × = 120

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