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]: A chef needs to cook 15 potatoes . He has already cooked 6 . If each potato takes 8 minutes to cook , how long will it take him to cook the rest ?
[EX A]: 72

[EX Q]: Ellen went to a garage sale to buy chairs . Each chair is 15 dollars . How much did Ellen spend for the 12 chairs she bought ?
[EX A]: 180

[EX Q]: At the fair Adam bought 10 tickets . After riding the ferris wheel he had 3 tickets left . If each ticket cost 9 dollars , how much money did Adam spend riding the ferris wheel ?
[EX A]:
63