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]: at the store beef jerky was $ 34.23 for 3 pounds . if you bought 7 pounds how much would it cost ?
[EX A]: 79.87

[EX Q]: 5 boats are in the lake . each boat has 3 people . how many people are on boats in the lake ?
[EX A]: 15

[EX Q]: roger was reading through his favorite book series . he had 30 books to read total . if he read 6 books each week how many weeks would it take him to finish the series ?
[EX A]:
5