 
 <prompt> A building has 10 floors. It takes 15 seconds to go up the stairs to the even-numbered floors and 9 seconds to go up to the odd-numbered floors.  This includes getting to the first floor. How many minutes does it take to get to the 10th floor? 

```Hausa translation:
Wani gidan akwai 10 kwangila. Ana samun 15 seconds don gudu har zuwa kwangilan da kuma ƙananan da aka nuna da lambobin. Wannan ya nuna zuwa kwangilan farko. Me ya faru idan aka samu zuwa kwangilan na 10?``` <response>: ```Toh, ga dukkan layin da aka nuna da ƙarfe (2, 4, 6, 8, 10), za'a samu 5*15= 75 seconds
Kuma ga dukkan layin da aka nuna da ƙarfe (1, 3, 5, 7, 9) za'a samu 5*9= 45 seconds
Don haka don samun dukkan layuka, za'a samu 75+45= 120 seconds
Don haka za'a samu 120/60=2 minutes don samun ƙarfe na 10

Javobin asali: 2.``` 