14) Emanuele has made a long journey and cannot sleep. After returning to Italy, at exactly 11:11 Italian time, he states: "I haven't slept for 53 hours and 53 minutes." At what time did he last wake up, knowing that at that moment he was in Korea and now he is in Italy (remember that the time difference between Italy and Korea is 7 hours ahead)?
(A) 12:04
(B) $12: 18$
(C) $12: 58$
(D) 13:04
(E) $13: 18$.
14) The answer is (B)

Let's reason according to Italian time first. A period of 53 hours and 53 minutes is equivalent to 2 days, 5 hours, and 53 minutes. Therefore, to calculate when Emanuele woke up, we need to subtract 5 hours and 53 minutes from 11:11. The most convenient way to perform this calculation is to subtract 6 hours and then add 7 minutes. This easily gives us that the required time is 5:18 (Italian time). A period of 53 hours and 53 minutes is equivalent to 2 days, 5 hours, and 53 minutes. Therefore, to calculate when Emanuele woke up, we need to subtract 5 hours and 53 minutes from 11:11. The most convenient way to perform this calculation is to subtract 6 hours and then add 7 minutes. This easily gives us that the required time is 5:18. To get the Korean time, we just need to add 7 hours to the Italian time. Therefore, Emanuele woke up at 12:18 (Korean time).