For crowd control, the facilities crew placed a rope around a basketball court. The area roped off is 120 feet by 60 feet. Posts are placed every 20 feet to hold the rope. How many posts are needed?
A)20 posts
B)18 posts
C)16 posts
D)14 posts

Question

Quizplus · Accepted Answer

To find the number of posts needed, we need to divide the length of the court (120 feet) and the width of the court (60 feet) by the distance between each post (20 feet).

For the length: 
120 feet ÷ 20 feet = 6 posts

For the width: 
60 feet ÷ 20 feet = 3 posts

We then need to add the number of posts needed for the length and width together: 
6 posts + 3 posts = 9 posts

However, we need to subtract the 4 corner posts where the rope meets: 
9 posts - 4 corner posts = 5 posts

Therefore, we need a total of 5 posts for each side, giving us a total of: 
5 posts × 2 sides = 10 posts

Therefore, the correct answer is B) 18 posts.

For Crowd Control, the Facilities Crew Placed a Rope Around