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: A company invited 47 people to a luncheon , but 7 of them did n't show up . If the tables they had held 5 people each , how many tables do they need ?

A: 8
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Q: Gwen bought two coloring books . One had 10 pictures and the other had 39 . After one week she had already colored 13 of the pictures . How many pictures does she still have to color ?

A: 36
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Q: The school cafeteria had 23 apples . If they used 20 to make lunch for the students and then bought 6 more , how many apples would they have ?

A:
9
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