Consider the three stocks in the following table. Pt represents price at time t and Qt represents shares outstanding at time t. Stock C splits two for one in the last period (t=2).

	P0	Q0	P1	Q1	P2	Q2
A	45	100	47.5	100	47.5	100
B	25	200	22.5	200	22.5	200
C	100	200	110	200	55	400

a. calculate the return on a price-weighted index, a value-weighted index and an equally weighted index of the three stocks, respectively, during the 1st year (t=0 to t=1). b. what must be the new divisor for the price-weighted index in the 2nd year?