Question

A flagpole casts a shadow of $25ft$. Nearby, a $6-ft$ tree casts a shadow of $3-ft$. What is the height of the flagpole?

Answer 1

Flagpole height is $50ft$.
This is a ratio problem
$\frac{heightofobject}{lengthofshadow}$
Let the height of the flagpole be $x$
$\Rightarrow \frac{6}{3}=\frac{x}{25}$
$x=\frac{6\times 25}{3}=50ft$