Answer:
D) 74
Step-by-step explanation:
Weighted avg rating for suppliers can be calculated as follows.
First lets arrange the data,
Price 40
Quality 90
Delivery reliability 75
For a total weight sum of 100%, weights can be distributed as
Price 20%
Quality 40%
Delivery 40%
thus weight for the supplier then is,
Weight = (40*0.2) + (90*0.4) + (75*0.4) = 74
Hope that helps.