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How close must the driver be in order to read the sign

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Reference no: EM132416341

A driver with uncorrected visual acuity of 20/60 attempts to read a sign along the side of a highway. The sign has been placed so that a person with 20/20 vision can read it from 600 feet away. How close must the driver be in order to read the sign?

By wearing glasses, the driver's vision is corrected to 20/40. How large must the letters be for the sign to be readable at 600 feet?

Reference no: EM132416341

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