Answer:
The answer to your question is: 75%.
Step-by-step explanation:
Data
Necklace has 36 blue beads
12 white beads
Total number of beads = 48
Process
Use a rule of three
48 beads ------------------- 100 %
36 beads ------------------- x
x = (36 x 100) / 48
x = 3600 / 48
x = 75 % are blue beads