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.
--------
Question: there are 30 students in a class . if the teacher put them into groups with 5 students in each group how many groups would she have ?

Answer: 6


Question: the school is planning a field trip . the school has 11 classrooms . there are 100 students in the school and 20 seats on each school bus . how many buses are needed to take the trip ?

Answer: 5


Question: a pile of clean white paper was stacked in the corner of her room . she decided to place these papers in paper envelopes which can contain 10 white papers . how many paper envelopes does she need if she has 120 clean white papers ?

Answer:
12