Two classmates, Simon and Bridgette, plan to meet in the computer lab to type up their
research papers. Simon can type at a speed of 1 page per hour, whereas Bridgette can type 2
pages per hour. So far, Simon already has 13 pages typed up, compared to Bridgette's 9
pages. Once they sit down and start typing together, the two students will reach the same
page count before too long. What will the page count be? How long will that take?