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

[Q]: Chloe was organizing her book case making sure each of the shelves had exactly 6 books on it . If she had 5 shelves of mystery books and 4 shelves of picture books , how many books did she have total ?
[A]: 54


[Q]: A recipe calls for 0.6667 cup of diced green pepper . Give the number of cups of diced green pepper that should be used to make 0.5 of this recipe .
[A]: 0.3333


[Q]: Mike had 15 video games but 9 of them were n't working . If he wanted to sell the working games for $ 5 each , how much money could he earn ?
[A]:
30