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IQ's are related to the person's age, so 125 is high for any age, and 140 is genius level.

Only about 5 percent of 10-year-olds score above 125, and less than 1 percent are rated over 140.

Since the IQ (intelligence quotient) was originally the intellectual age divided by the physical age, younger individuals did not have to demonstrate as great an ability as older individuals.

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7y ago

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