Answer:
Explanation:
a. 
Finding Weights
Apple => 600 * 500     =  300,000
Cisco  => 10,000 * 20  =  200,000
CP      => 5,000 * 100  =  500,000
Total                              =  1,000,000
Each Weight
Apple => 300,000 / 1,000,000     =  30%
Cisco  => 200,000 / 1,000,000     =  20%
CP      => 500,000 / 1,000,000     =  50%
b.
Using
(Rate*Weight)
(0.3 * .12) + (0.2 * .10) + (0.5 * .08) = 0.096 = 9.6%
c.
New Weights
Apple => 600 * 525     =  315,000
Cisco  => 10,000 * 25  =  250,000
CP      => 5,000 * 87     =  435,000
Total                              =  1,000,000
Each Weight
Apple => 315,000 / 1,000,000     =  31.5%
Cisco  => 250,000 / 1,000,000     =  25%
CP      => 435,000 / 1,000,000     =  43.5%