1. Consider the following three stocks, their prices (P) and number of shares (Q):

P0 Q0 P1 Q1

Bruce 50 500 70 500

Hayes 250 100 400 100

Cooper 150 150 50 150

Assume that during period 1, Hayes had a 4-for-1 stock split, and their ending P=100 and ending Q=400. How would you need to adjust the divisor in order to maintain the index return you calculated in a. above?