The pillar covered in the ground rises above the ground by 0.8 of its length. What is the length of the post

The pillar covered in the ground rises above the ground by 0.8 of its length. What is the length of the post if its ground part is 1.6 m.

Let’s solve this problem in one action. Since 0.8 of the length of the pillar is equal to 1.6 meters, we calculate the length of the entire pillar, dividing the length of the aerial part by 0.8, we get the following expression, we find its value:
1.6 / 0.8 = 2 m.
Answer: the length of the post is 2 meters.