## Problem Solving Using Rational Equations

**Example Group: Shared work problems**

**1.**Anna, Bernice, and Cassie all work for the same newspaper delivering the Sunday edition. Normally they work alone and swap out working every third Sunday. While working alone to deliver the Sunday edition, it takes Anna 2 hours to deliver all the papers, and it takes Cassie 1 hour longer than it takes Bernice. One week, they decide to work together to deliver the papers. It turns out that they can deliver all the papers in 50% of the time it takes Bernice working alone. How long does it take her to deliver all the papers when she is alone?