At a light bulb factory 4 out of every 25 light bulbs are defective. How many light bulbs would you | MathCelebrity Forum

At a light bulb factory 4 out of every 25 light bulbs are defective. How many light bulbs would you

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At a light bulb factory 4 out of every 25 light bulbs are defective. How many light bulbs would you excpect to be defective out of 350 light bulbs

Set up a proportion of light bulbs to defects where d is the number of defects per 350 light bulbs:
4/25 = b/350

Type this proportion into our search engine, and we get:
b = 56
 
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