JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Application +4 | -1

IQ of a person is given by the formula

\mathrm{IQ}=\frac{\mathrm{MA}}{\mathrm{CA}} \times 100

where, MA is mental age and CA is chronological age.If

80 \leq \mathrm{IQ} \leq 140

for a group of 12 years children, then the range of their mental age is

View answer and explanation

Correct option: C

9.6 \leq \mathrm{MA} \leq 16.8

Option C (

9.6 \leq \mathrm{{MA}} \leq 16.8

) is correct because it represents the range of mental age (MA) calculated from the given IQ range and chronological age.

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