Al, Betty, and Clare split \$ 1000 among them to be invested in different ways. Each begins with a different amount. At the end of one year they have a total of \$ 1500. Betty and Clare have both doubled their money, whereas Al has managed to lose \$ 100. What was Al’s original portion?
Answer Choices
A. \$ 250
B. \$ 350
C. \$ 400
D. \$ 450
E. \$ 500