Question

the total height of three of Thumbelina's sisters is 180 cm. If the heights of the three sisters are in the ratio 4:3:5, find the height of the smallest sister.

Answer 1

Step-by-step explanation:

The height of the smallest sister is 45 cm

Step-by-step explanation:

We are given that the heights of the three sisters are in the ratio 4:3:5

Let the ratio be x

So, The heights of three sisters are 4x,3x and 5x

We are given that The total height of three of Thumbelina’s sisters is 180 cm.

So,

4x+3x+5x=180

12x=180

x= 180/12

x= 15.

Height of smallest sister = 3x=3(15)=45 cm