Question

The ratio of the length of a pink ribbon to the length of a blue ribbon was 3 : 5.
After 20 cm of the blue ribbon was cut to make a bow, the ratio of the length
of the pink ribbon to the remaining length of the blue ribbon was 9 : 11. What
was the length of the pink ribbon?

Answer 1

Step-by-step explanation:

Pink ribbon=3x

Blue ribbon=5x

5/20=1x=4cm

Therefoe=3x4=12cm

Answer 2

Answer:

before After

Pink:Blue Pink:Blue

3:5 9:11

3X3:5X3

9:15

Now, pink:blue

9:11

9:15

Difference in blue ribbon= 15-11=4

blue ribbon= Total blue ribbon cut

4 = 20

blue ribbon= 5

So, pink ribbon=9X5=45cm