Browse · MATH
Printjmc
algebra junior
Problem
A tree doubled its height every year until it reached a height of 32 feet at the end of 6 years. What was the height of the tree, in feet, at the end of 3 years?
Solution
Going backwards, we see that the tree was feet at the end of 5 years, feet at the end of 4 years, and at the end of 3 years.
Final answer
4 \text{ feet}