smon74659 smon74659

25-02-2024
Mathematics

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A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. What is the probability that at least one of these is defective.

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25-02-2024

Answer:

1/5

Step-by-step explanation:

4/20 = 1/5

the probability of a bulb o be defective is 1/5

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