Question

A plant nursery is growing a tree that is 3 ft tall and grows at an average rate of 1 ft per year. Another tree at the nursery is 4 ft tall and grows at an average rate of 0.5 ft per year. After how many years will the trees be the same height?

Answer 1

the answer is 2. if you multiply the last numbers by 2 and add them to the initial number, you get 5 on both, so it takes 2 years.