 
 <prompt> Nathan ya yi wasan baseball na amfani. Ya buga ga 3 hours yayin shekara biyu, kowace rana. Uwarshi Tobias ya buga ga 5 hours kowace rana, amma kawai ga wata shekara. Me ya faru ne a gaba? <response>: Biyan wata shekara sun hada da 14 na rana, don haka Nathan ya buga har 3 * 14 = 42 hours.
Tobias ya buga har 7 rana, don haka ya buga jumla na 5 * 7 = 35 hours.
Nathan da Tobias suka buga har 42 + 35 = 77 hours.

Jawabi zai kasance 77. 