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]: the razorback t-shirt shop sells their t-shirts for $ 16 . last week they sold 45 t-shirts . how much money did they make last week ?
[EX A]: 720

[EX Q]: shiela was into history of asia . she can read 11 pages per hour of the book entitled `` asia 's history made easy '' . if the encyclopedia has 143 pages how many hours did it take shiela to finish reading the book ?
[EX A]: 13

[EX Q]: daniel and his brother ben went to their grandfather 's farm for a few weeks of vacation . during their stay at the farm they were asked to take care of the animals . 1 day his grandfather asked if he could count the total number of sheep that they have . if there are 3 herds of sheep and each herd has 20 sheep how many sheep do they have in total ?
[EX A]:
60