Sally Has an IQ of 140 and a Mental Age

question 160

Multiple Choice

Sally has an IQ of 140 and a mental age of 14. According to Stern's IQ formula, how old is Sally?

• A) 8
• B) 20
• C) 10
• D) 14
• E) 12

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Definitions:

Double-Declining-Balance

A method of accelerated depreciation which doubles the rate at which an asset's book value depreciates compared to straight-line depreciation.

Salvage Value

The estimation of an asset's value at the end of its period of utility.

Depreciation

The systematic allocation of the cost of a tangible asset over its useful life, representing the wear and tear or obsolescence of the asset.

Service Life

The expected period during which an asset is considered useful and productive in a business operation, also known as useful life.