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.

Example Input: A group of science students went on a field trip . They took 6 vans and 8 buses . There were 6 people in each van and 18 people in each bus . How many people went on the field trip ?
Example Output: 180

Example Input: A new building needed 14 windows . The builder had already installed 8 of them . If it takes 8 hours to install each window , how long will it take him to install the rest ?
Example Output: 48

Example Input: A waiter had 9 tables he was waiting on , with 2 women and 6 men at each table . How many customers total did the waiter have ?
Example Output:
72

