Question

Question
Rachel takes three trains to commute to her job. The commute takes her, on average, 1 hour and 20 minutes.
If she walks for about 15 minutes and rides the trains for about 53 minutes. What's her average waiting time, in
minutes, at each of the three train stations?

Answer 1

Answer:

4 minutes.

Step-by-step explanation:

There are three trains that Rachel has to take to go to her job. The total time is taken by her, on average, 1 hour and 20 minutes i.e. (60 + 20) = 80 minutes.

In his journey, she walks for 15 minutes and a train journey for about 53 minutes.

Then the total waiting time for the trains is (80 - 53 - 15) = 12 minutes.

Therefore, the average waiting time, in minutes, at each of the three train stations will be $\frac{12}{3} = 4$ minutes. (Answer)