Answer:
27 blue balloons
Explanation:
Salina was at a party and she noticed that the room had 54 balloons.
For every red balloon there were 2 yellow and 3 blue balloons.
This is written in the form of ratio as = 1 : 2 : 3
First we calculate the number of red balloon.
54 / (1 + 2 + 3)
= 54 / 6 = 9 red balloons
For every red balloons there were 3 blue balloons.
Therefore, Blue balloons = 9 × 3 = 27 blue balloons
27 blue balloons were in the room.