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If an individual with 20/20 vision can read a sign from 25 feet away, how far away would someone with 20/50 vision have to stand to read the same sign?

Answer :

Final answer:

A person with 20/50 vision would have to be standing 25 ft away from a sign to read it, which is the same distance as a person with 20/20 vision.

Explanation:

To calculate how far away someone with 20/50 vision would have to be standing to read the same sign that a person with 20/20 vision can read from 25 ft away, we can use the concept of visual acuity. A person with 20/20 vision can read letters that are normally seen at 20 feet, while a person with 20/50 vision can only read letters that are normally seen at 50 feet.

Using a proportion, we can set up the equation: 20/20 = 25 ft/x, where x represents the unknown distance. Cross multiplying, we get 20x = 500, and solving for x, we find that x = 25 ft * 20 / 20 = 25 ft.

Therefore, a person with 20/50 vision would have to be standing 25 ft away from the sign to read it, which is the same distance as a person with 20/20 vision.

Learn more about Visual Acuity here:

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