The last time Bob cut his hair he cut it to 6 inches. His hair is now 36 inches long. If hair grows at a rate of .5 inches per month how many years did it take him to grow out his hair? Give me reasons, before answering the question
user
His hair grew 36 inches - 6 inches = 30 inches. Hair grows at a rate of 12 months / year * 0.5 inches / month = 6 inches / year. It took him 30 inches / 6 inches / year = 5 years to grow his hair out. So the final answer is 5.
assistant