Question

Calculate the MA of a 10-year-old boy who has an IQ of 120.

Answer 1

Explanation:

let X be a mental age

IQ =MA/CA ×100

where ma stands for mentally and CA stands for chronological age.

120=x/10×100

x=12.

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Answer 2

Answers:

IQ=MA/CA=100

Let MA be 'x'

120=x/10 x 100

120/10=x

x=12

Hence proved

Hint:

IQ=120

CA=10