Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
a paper bag can hold 16 cookies . if edgar buys 292 cookies how many paper bags does he need ?
Solution: 18.25
Reason: number of paper bags = 292/16 = 18.25 bags

Now, solve this instance: 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 ?
Student:
12