instruction:
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.
question:
A waiter had 22 customers in his section . If 14 of them left and the rest of his tables had 4 people at each table , how many tables did he have ?
answer:
2


question:
Jason picked 46 pears , Keith picked 47 pears , and Mike picked 12 pears from the pear tree . How many pears were picked in total ?
answer:
105


question:
A new building needed 12 windows . The builder had already installed 6 of them . If it takes 4 hours to install each window , how long will it take him to install the rest ?
answer:

24