Answer:
red balls = 15
Explanation:
It is given that The ratio of blue balls to red balls is 4: 5.
Let's assume
- number of blue balls = 4x
- number of red balls = 5x.
If there are 27 balls in total it means that sum of Blue balls and red is equal to 27.
Blue balls + red balls = 27.
4x + 5x = 27
9x = 27
x = 27/9
x = 3
Number of blue balls = 4x
4 × 3
12 balls
Number of red balls = 5x
5 × 3
15 balls.
Verification :
Blue balls + red balls = 27.
12 + 15 27
27 = 27
Hence, Verified!
Therefore, The total number of red balls are 15.