21 people travelled to a meeting.
12 used a train.
6 used a car.
7 did not use a train...
Mathematics, 10.10.2021 15:30, NeverEndingCycle
21 people travelled to a meeting.
12 used a train.
6 used a car.
7 did not use a train or a car.
Some used a train and a car.
Two people are chosen at random from those who used a train.
Find the probability that both these people also used a car.
Answers: 1
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