Basic Math with Geometry

Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how many defective bottles should Julio allow before rejecting the entire line?

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  1. 1/50 * 120 = 120/50 = 2.4

    He'll probably reject the line if he finds 3 defective bottles out of 120.

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    posted by Ms. Sue

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