Multiple choice

There are 3 green, 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green or a white bulb?

  1. 3/4

  2. 2/3

  3. 4/3

  4. 2/5
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B Correct answer
Explanation

Total bulbs = 3 + 4 + 5 = 12. Green or white = 3 + 5 = 8. Probability = 8/12 = 2/3.

AI explanation

The total number of bulbs in the bag is 3 green + 4 orange + 5 white = 12 bulbs. The number of favorable bulbs, being either green or white, is 3 + 5 = 8. Using the classical definition of probability, the chance of picking a green or white bulb is the ratio of favorable outcomes to total outcomes, which is 8/12. This fraction simplifies to 2/3.

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