Consider the three stocks in the following table. P_t represents price at time t, and Q_t represents shares outstanding at time t. Stock C splits two for one in the last period.

	P0	Q0	P1	Q1	P2	Q2
A	140	150	150	150	150	150
B	135	300	130	300	130	300
C	270	300	275	300	140	600

Calculate the first-period rates of return on the following indexes of the three stocks (t = 0 to t = 1): (Do not round intermediate calculations. Round your answers to 2 decimal places.) a. A market-value-weighted index.

b. An equally weighted index.