IQs, MAs, and CAs

Algebra Level 1

IQ - Intelligence Quotient

MA - Mental Age

CA - Chronological Age

For more information about IQs, MAs, and CAs, check this out from GoogleBooks: PSYCH - Spencer Rathus


The answer is 12.6.

Lew Sterling Jr by Lew Sterling Jr , 24, USA

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2 solutions

Lew Sterling Jr
Nov 14, 2014

(100(MA))/age = IQ

(100(MA))/9 = 140

100(MA) = 1260

(100(MA))/100 = 1260/100

MA = Mental Age = 12.6

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Yoyo Jiang
Nov 16, 2014

Let x = her mental age, 100(x/9)=140 x/9=1.4 x=1.4(9) x=12.6

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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