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16 Jun 2021, 04:30
Kudos
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
67% (00:56) correct
33%
(01:29)
wrong
based on 106
sessions
History
Date
Time
Result
Not Attempted Yet
Dennis cooks dishes in three colors - red, white and yellow. If Norman, the renowned restaurant critic, selects one dish randomly, what is the probability that the selected dish will be either white or yellow?
(1) The probability that the dish will be yellow is 1/5
(2) The probability that the dish will be red is 1/3
(1) The probability that the dish will be yellow is 1/5
(2) The probability that the dish will be red is 1/3
16 Jun 2021, 04:45
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Quote:
The takeaway from the question statement: We have dishes in 3 colours i.e. red, white, and yellow and we wanna know if we pick one randomly then what's the probability that it's either White or yellow.
We can find the answer if we can find the probabilities of "Selecting White and yellow dishes"
OR
we can find the correct answer by finding the probability of "NOT selecting a red dish".
Statement 1 - It tells us about yellow but not white. Insufficient.
Statement 2 - It tells us about selecting red. So the probability of "Not selecting a red dish" can be calculated as follows:
1−(1/3)=2/3
Sufficient.
Hence, B is the correct answer.
21 Jun 2025, 11:15
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Automated notice from GMAT Club BumpBot:
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
A member just gave Kudos to this thread, showing it’s still useful. I’ve bumped it to the top so more people can benefit. Feel free to add your own questions or solutions.
This post was generated automatically.
