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.

There are 3 calories in a candy bar . How many calories are there in 5 candy bars ?
15

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 ?
180

Ned had 15 video games but 6 of them were n't working . If he wanted to sell the working games for $ 7 each , how much money could he earn ?

63