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]: A florist had 50 roses . If she sold 15 of them and then later picked 21 more , how many roses would she have ?
[A]: 56


[Q]: Mike went to 15 basketball games this year , but missed 41 . He went to 39 games last year . How many basketball games did Mike go to in total ?
[A]: 54


[Q]: If Bob can make 100 feet of rope in 2 hours and Tim can make 75 feet of rope in 2 hours , how many feet of rope can Bob and Tim working together make in 4 hours ?
[A]:
350