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Stern formula to determine I.Q is:

A. M.A × C.A × 100
B. M.A / C.A × 100
C. C.A / M.A × 100
D. None of a and b
Correct Answer: B. M.A / C.A × 100

Stern's formula for Intelligence Quotient (I.Q.) is Mental Age (M.A.) divided by Chronological Age (C.A.), multiplied by 100. This standardizes the score, making option B the correct formula.

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