Probability

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Probability

by swerve » Fri Nov 14, 2025 1:38 pm

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A

B

C

D

E

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Every passenger on a certain airplane is from either Japan or Australia; no one is from both. Every passenger is reading either a novel or a biography; no one is reading both. If a passenger is to be selected at random, is the probability that the passenger is both from Japan and reading a novel greater than the probability that the passenger is both from Australia and reading a biography?

1) The probability that a randomly selected passenger is either from Japan or reading a novel or both is \(208/251\)

2) The probability that a randomly selected passenger is either from Australia or reading a biography or both is \(172/251\)

The OA is C
Source: — Data Sufficiency |