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	60	65	70	65	70	65
B	50	130	40	130	40	130
C	100	130	110	130	60	260

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. Omit the "%" sign in your response.)

a.	A market-value-weighted index.

Rate of return

%

b.	An equally weighted index.

Rate of return

%