Parallel (Simon Singh): The Grand Old Duke of York What percentage of the 10,000 men were still there when they reached the bottom of the hill? Education, Maths, Maths Challenge, Maths Problem Solving, Puzzle For The Day, School, Word Problems, Parallel, Simon SinghSarah NorrisFebruary 14, 2021Lando EducationAoPS, Art of Problem Solving, maths problem of the day, maths, Maths challnege, maths puzzles, mathematical puzzles, maths homework, mathematics, maths challenge, UK Maths Trust, school, UKMT, UKMT JMC, UKMT IMC, UKMT SMT, UKMT Olympiad, Olympiad, maths olympiad, maths training, Lando, Lando Education, tutoring, Simon Singh, ParallelComment Twitter LinkedIn0 Reddit Tumblr Pinterest0 0 Likes