Mathematics, 01.02.2020 16:43 dounutalien

One's intelligence quotient, or iq, varies directly as a person's mental age and inversely as that person's chronological age. a person with the mental age of 25 and a chronological age of 20 has an iq of 125. what is the chronological age of a person with a mental age of 40 and an iq of 80?

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