Multiple choice general knowledge math & puzzles

Mr.Ghosh wants to fence his square shaped field with each side measuring 120 ft. If the posts have to put at a distance of 12 ft each, how many posts are required ?

  1. 38

  2. 39

  3. 40

  4. 41

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a square field of 120ft per side, the perimeter is 480ft. Dividing the perimeter by the distance between posts (12ft) gives 40 posts. In a closed loop, the number of posts equals the number of intervals.