Keisha knows that trains arrive regularly at the train station. she has part of the afternoon schedule. when will the next train arrive at the station?

The next train will arrive at 4:46 P.M.

Solution:

The trains arrive regurlaly. We can find the minutes between arrivals substracting two consecutive arrivals:

4:02 P.M. - 3:40 P.M. = 22 minutes or

4:24 P.M. - 4:02 P.M. = 22 minutes

Then the next arrival is in 22 minutes:

4:24 P.M. + 22 minutes = 4:46 P.M.