Answer: The piece of wood is 48 times long as the nail.
Step-by-step explanation: Given that a piece of wood is 12 feet long and a nail is 3 inches long.
We are to find the number of times the piece of wood is as compared to the nail.
We have
12 feet = 12 × 12 = 144 inches.
Let n be the required number of times.
Then, we have

Thus, the piece of wood is 48 times long as the nail.