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]: A chef needs to cook 13 potatoes . He has already cooked 5 . If each potato takes 6 minutes to cook , how long will it take him to cook the rest ?
[A]: 48


[Q]: Rachel bought 7 new chairs and 3 new tables for her house . If she spent 4 minutes on each piece furniture putting it together , how many minutes did it take her to finish ?
[A]: 40


[Q]: Sarah had 4 pages of math homework and 6 pages of reading homework . If each page had 4 problems on it , how many problems did she have to complete total ?
[A]:
40