Samantha is 1.32 m tall on her eleventh birthday and 1.57 m tall on her twelfth birthday. By what factor has her height increased?

Isnt the answer 0.189?! because that doesn't seem to be the write answer

To find the factor by which Samantha's height has increased, you need to calculate the ratio between her twelfth birthday height and her eleventh birthday height.

Step 1: Find the difference between her twelfth and eleventh birthday heights:
1.57 m - 1.32 m = 0.25 m

Step 2: Calculate the ratio by dividing the difference in height by her original height:
0.25 m / 1.32 m = 0.189

So, the factor by which Samantha's height has increased is approximately 0.189, as you mentioned. This means her height has increased by 0.189 times or 18.9%.