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

[EX Q]: What is 80 % of 40 ?
[EX A]: 32

[EX Q]: Chloe picked 48 carrots from her garden . If she threw out 45 of them and then picked 42 more the next day , how many carrots would she have total ?
[EX A]: 45

[EX Q]: Sam invited 9 friends to a birthday party , but 6 could n't come . If he wanted to buy enough cupcakes so each person could have exactly 2 , how many should he buy ?
[EX A]:
6