Answer:
Number of white marbles in the bag = 45
Step-by-step explanation:
Total number of marbles in the bag = 135
Ratio of white marble to transparent ones = 3 : 6
Let number of white marbles be [tex]=3k[/tex]
Then number of transparent marble will be [tex]=6k[/tex]
Total number of marbles will be [tex]=3k+6k=9k[/tex]
So we have.
[tex]9k=135[/tex]
Dividing both sides by 9.
[tex]\frac{9k}{9}=\frac{135}{9}[/tex]
∴ [tex]k=15[/tex]
∴ Number of white marbles in the bag = [tex]3k=3\times15 = 45[/tex]