You are given a math word problem and you are supposed to apply addition or subtraction mathematical operators on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

[Q]: For the school bake sale Carol made 30 cupcakes . If she sold 9 of them and then made 28 more , how many cupcakes would she have ?
[A]: 49


[Q]: For homework Nancy had 17 math problems and 15 spelling problems . If she can finish 8 problems in an hour how long will it take her to finish all the problems ?
[A]: 4


[Q]: There school 's baseball team had 31 new players and 4 returning players . If the coach put them into groups with 7 players in each group , how many groups would there be ?
[A]:
5