instruction:
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.
question:
Sandy has 8 dozen books . Fred has 5 times more books than Sandy . How many books does Fred have ?
answer:
480


question:
Benny bought 7 dozen eggs from the grocery store to bake some cakes . How many eggs did Benny buy ?
answer:
84


question:
A new building needed 9 windows . The builder had already installed 6 of them . If it takes 6 hours to install each window , how long will it take him to install the rest ?
answer:

18