Screws

The box contains 8 iron, 6 brass, and 4 titanium screws. What is the probability that the randomly selected screw will not be brass?

Correct answer:

p =  0.6667

Step-by-step explanation:

$p={\displaystyle \frac{8+4}{8+6+4}}={\displaystyle \frac{2}{3}}=0.6667$

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