Question

A zipper manufacturer selected 75 zippers at random and found 13 to bedefective. Based on this finding, predict how many defective zippers arecontained in a carton of 300 zippers.A. 16B. 28C. 39D. 52

Answer 1

Number of defective zipper = 13

Number of selected zipper = 75

The ratio of the defective zipper to the selected zipper is given by

$\frac{13}{75}$

The number of defective zippers contained in a carton of 300 zippers would be:

$\frac{13}{75}\times300\text{ =52}$

Therefore, the number of defective zippers contained in a carton of 300 zippers is 52. [Option D]