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:
A waiter had 9 tables he was waiting on , with 7 women and 3 men at each table . How many customers total did the waiter have ?
answer:
90

question:
If Charles strolled 6 miles at 3 miles per hour , how long was Charles travelling ?
answer:
2

question:
The school is planning a field trip . There are 28 students and 7 seats on each school bus . How many buses are needed to take the trip ?
answer:
4