 
 <prompt> Xavier ya buga kwallon football tare da abokansa. A wannan lokacin Xavier zai iya buga 2 kwalla a farko. Me kake so ya buga kwalla a farko, idan wasan ya dauka sama da 2 hours? <response>: Biyan sa'o biyu yana nufin 2 * 60 = 120 da dakika.
Don haka a sa'o biyu, akwai tare da 120 / 15 = 8 jama'a na minti 15.
Don haka a cikin sa'o biyu, Xavier zai iya samun 8 * 2 = 16 kwallaye.

Sami amsa ne zai sami 16. 