 
 <translate> Since 5 rooms have 4 windows, this accounts for 20 windows because 4 * 5 = 20 windows. Since 8 rooms have 3 windows, this accounts for 24 windows because 8 * 3 = 24 windows. There are 78 windows left over because 122 - 20 - 24 = 78. Therefore, there are 39 rooms with 2 windows because 78 / 2 = 39.
The answer: 39. <hau> Tun da ɗakuna 5 suna da windows 4, wannan yana lissafin windows 20 saboda 4 * 5 = windows 20. Tun da ɗakuna 8 suna da windows 3, wannan yana lissafin windows 24 saboda 8 * 3 = windows 24. Akwai windows 78 da suka rage domin 122 - 20 - 24 = 78. Saboda haka, akwai dakuna 39 da windows 2 saboda 78 / 2 = 39. Amsar ita ce: 39. 