The workers fenced off a rectangular section 75 m long and 30 m wide. To do this, they drove posts in the corners

The workers fenced off a rectangular section 75 m long and 30 m wide. To do this, they drove posts in the corners of the plot and on the sides of it every 3 m. Then they pulled 5 rows of wire through the posts. How many posts did the workers drive in? How many meters of wire did it take to fence the site?

First you need to know the perimeter of the rectangle, we calculate: 75 + 75 + 30 + 30 = 210m. Every three meters there is a post. In order to find out how many tables have been scored in total, it is necessary: 210/3 = 70 (columns). In order to find out how much wire is needed in total: 210 * 5 = 1050 (meters of wire).
Answer: The workers hammered 70 posts and pulled 1,050 meters of wire.