3. According to a pencil company's advertising campaign, 2 out of 3 students prefer the company's pencils to their competitor's pencils. A representative of the
company went to a high school with 1479 students for a Q & A session, and one
of the students asked, "If this is true, in this high school, how many more
students are there who prefer your pencils than students who prefer your
competitor's pencils?" Help the company's representative come up with an
answer. Assume that the company's claim is true. (4 points: Part 1 - 1 point; Part II
- 1 point; Part III - 1 point, Part IV-1 point)