500
Mrs. Knudtson picked a watermelon which was the same size as Ms. Phillips (who had cut hers into three pieces and then ate one piece). Mrs. Knudtson cut hers into six equal pieces. If she wants to eat an equal amount of watermelon as Mrs. Phillips, how many pieces should Mrs. Knudtson eat?
What is 2 pieces (2/6 = 1/3 or 2/6 is equivalent to 1/3)