Question

A boy is twice as tall as his little sister and 30cm shorter than his father. Their combined height is 3.8m. Find the height of each person.

Answer 1

Boy height = x
sister height = x/2
father height = x+30

So:
\[x + \frac{x}{2} + x + .30 = 3.8\]

Answer 2

Then you can solve for x

Answer 3

Then find the other heights

Answer 4

THANK YOU