It is known that in a box of 600 screws, 42 screws are defective. One screw is taken out at random from this box. Find the probability that it is not defective .
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Step-by-step explanation:
Total no of Screws that are not defective is 600 - 42 = 558
Probability of getting screws that are not defective = Number of Screws that are not defective / total no of screws
558 / 600 = 91 / 100
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this is the correct answer you can also calculate it in calculator.
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