You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

Q: Nancy 's class is going on a field trip to the zoo . If each van can hold 5 people and there are 12 students and 3 adults going , how many vans will they need ?

A: 3
****
Q: For Halloween Sarah received 108 pieces of candy . She ate 36 pieces then placed the rest into piles with 9 in each pile . How many piles could she make ?

A: 8
****
Q: The cafeteria had 47 apples . For lunch they handed out 27 to students and decided to use the rest to make pies . If each pie takes 4 apples , how many pies could they make ?

A:
5
****