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Grace [21]
3 years ago
14

A train arrives at a station and waits 2 min before departing. Another train arrives at the station 18 minutes later, repeating

the cycle. Identify the probability that a train will be at the station when you arrive.

Mathematics
2 answers:
svetlana [45]3 years ago
5 0

Answer:

1/10.

Step-by-step explanation:

The length of each cycle is 2 + 18 = 20 minutes.

During this time  the train in stationary for 2 minutes.

So the probability of the train being at the station when you arrive is 2/20 = 1/10.

nadya68 [22]3 years ago
4 0

|\Omega|=20\\|A|=2\\\\P(A)=\dfrac{2}{20}=\dfrac{1}{10}=10\%

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