Henry Ernest Dudeney/Puzzles and Curious Problems/237 - The Mudbury War Memorial/Solution

by : $237$

 * The Mudbury War Memorial

Solution
They had $180$ posts.

The memorial ground was $110$ yards, that is $330$ feet, around.

Proof
Recall there are $3$ feet to the yard.

Let $d$ yards be the length of the perimeter of the war memorial ground.

Let $p$ be the number of posts they have.

We have:

Hence the result.