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

by : $237$

 * The Mudbury War Memorial
 * The inhabitants of Mudbury recently erected a war memorial,
 * and they proposed to enclose a piece of ground on which it stands with posts.
 * They found that if they set up the posts $1$ foot asunder they would have too few by $150$.
 * But if they placed them a yard asunder there would be too many by $70$.
 * How many posts had they in hand?