Question

Kali had a total of 212121 balloons at her birthday party. The ratio of blue balloons to green balloons is shown in the tape diagram. How many blue balloons did Kali have at her party?

Answer 1

Blue balloons = 12

Explanation:

Total no of balloons = 21

Let us assume that the ratio of blue balloons to green balloons is 4:3.

Let there are 4x blue balloons and 3x green balloons.

ATQ,

4x+3x = 21

7x = 21

x = 3

Blue balloons = 4x

= 4(3)

= 12

Hence, she will have 12 blue balloons at her party.