Question

A plant doubled its height each yer until it reached its maximum height over the course of $12$ years How many years did it take for it to reach half of its maximum height?

Answer 1

Let the Height of the Plant be $H$

As it doubles every Year

height after 12 Years $=2^{11}H$

Half of this Height is $2^{10}$

which is the height in the 11th year