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.

Example Input: if tom plans to fix 158 watches at the rate of 12 watches per day how many days does he need to fix the watches ?
Example Output: 13.166666666666666

Example Input: the school is planning a field trip . the school has 11 classrooms . there are 100 students in the school and 20 seats on each school bus . how many buses are needed to take the trip ?
Example Output: 5

Example Input: haley has 63 magazines in her cabinet . she plans to send it to the recycling office in their area . if she places it in boxes which can contain 9 magazines how many boxes will she use ?
Example Output:
7