Left, Right, Across....
Three men, C, D, and E, start at the same time, and from the same point in the circumference of a circlular island 71 miles around; C goes 50 miles a day, and E 40, in opposite directions round the island; and D goes along the island's diameter at the rate of of 35 miles a day. How soon will the three be again at the point of outset, reckoning the ratio of the diameter of a circle to its circumference to be 113:355?
Solution:
Source: John Hunter's Textbook of Arithmetic, for the Use of Teachers, 1847
