The match in football between the fourth and classes began at 12:50 and lasted for one hour

The match in football between the fourth and classes began at 12:50 and lasted for one hour, what time the football match ended if during it there were two breaks of 10 minutes each.

Find out how long the breaks lasted in general: 2 * 10 = 20.
If the match lasted one hour, then it should have ended at 13.50.
Since there were breaks in the match, which took another 20 minutes, the match ended at 13.50 + 20 minutes = 14.10.
And so, our answer to the problem: the match ended at 14.10, taking into account two breaks of 10 minutes.