SNAP 2017 Probability — Previous Year Question
Paper
SNAP 2017
Section
Quantitative
Topic
Probability
Difficulty
Medium
Question
SNAP 2017
John was writing an entrance test. Every question is a multiple choice question with four probable answers and one correct answer. The probability that he knows the answer is 80%. If he correctly answered a question, then what is the probability that he was guessing?
1/5
1/2
1/17
None of the mentioned options are correct
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