Question

There are 180 flights from an airport,20 of which are longer then 3 hours . The flight from this airport will be randomly chosen. What is the probability it is longer then 3 hours ? As a fraction

Answer 1

1/9

Explanation:

20 out of 180 flights are longer than 3 hours. So as a fraction that would be 20/180. However, this can be simplified to 1/9.

Answer 2

1/9

Explanation:

Number of flight in the airport = 180

Number of flights which are longer than 3 hours = 20

Probability of choosing a flight longer than 3 hours will be number of flights which are longer than three hours divided by the total number of flights in the airport

That’s

20/180

Divide both the numerator and denominator by 20

1/9