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.

[EX Q]: Mike had 15 video games but 9 of them were n't working . If he wanted to sell the working games for $ 5 each , how much money could he earn ?
[EX A]: 30

[EX Q]: Lisa rented 4 DVDs for $ 4.8 . How much did each DVD cost to rent ?
[EX A]: 1.2

[EX Q]: Martin strolled to Lawrence 's house . It is 12 miles from Martin 's house to Lawrence 's house . It took Martin 6 hours to get there . How fast did Martin go ?
[EX A]:
2