In a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed?

Question

Tatiana Santos

Mathematics

29 October, 12:23

In a survey, 480 people, or 75%, said they attended a movie at least once a month. How many people were surveyed?

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Answers (2)

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Jacob Guerra · Answer 1

This is a great problem to set up a proportion. We know that 480 people is 75% of some population, let's call it P. So we know that 480/P = 75/100 (because 75/100 is 75%). Therefore, we would solve 480/P=75/100, which would yield, 480*100=75P (cross multiplication). Then P = (480*100) / 75. P=640.

Cowan · Answer 2

480/3 = 160

160 = 25%

160*4 = 640

640 people were surveyed.