Given:
The ratio of red sweets to green sweets is 3:4.
Total number of green sweets = 12
To find:
The total number of red sweets.
Solution:
We have,
The ratio of red sweets to green sweets = 3:4.
Let the number of red sweets and green sweets are 3x and 4x respectively.
Total number of green sweets = 12
[tex]4x=12[/tex]
Divide both sides by 4.
[tex]x=3[/tex]
Now,
Number of red sweets = [tex]3x[/tex]
= [tex]3(3)[/tex]
= [tex]9[/tex]
Therefore, the number of red sweets is 9.